"And being assembled together with them, commanded them that they should not depart from Jerusalem, but wait for the Promise of the Father, which, said He, you have heard of Me. For John truly baptized with water; but you shall be baptized with the Holy Spirit not many days hence...you shall receive power after that the Holy Spirit is come upon you: and you shall be witnesses unto Me both in Jerusalem, and in all Judaea, and in Samaria, and unto the uttermost part of the earth." (Acts 1:4-5, 8).
Jesus spoke these words to His disciples just prior to His ascension. He commanded them to wait for the promise of the Father, which is the baptism in the Holy Spirit, a separate work of grace where the born again believer who is born of the Spirit is then immersed or baptized into the Spirit. Being born of the Spirit simply means being born again or saved. Being baptized in the Holy Spirit means to be filled or controlled by the Spirit to become powerful witnesses of Jesus Christ. John the Baptist prophesied of that day when the body of Christ would be given the Holy Spirit to continue the work that Christ Himself began in His own ministry. John said, "I indeed baptize you with water unto repentance: but He Who comes after me is mightier than I, Whose shoes I am not worthy to bear: He shall baptize you with the Holy Spirit, and with fire" (Matthew 3:11).
That this is a separate work of grace is proven in the history of the early Church. For example, in Acts 19, "it came to pass, that while Apollos was at Corinth, Paul having passed through the upper coasts came to Ephesus: and finding certain disciples, He said unto them, 'Have you received the Holy Spirit since you believed?' And they said unto him, 'We have not so much as heard whether there be any Holy Spirit.'" (Acts 19:1-2). These were believers, and even more so, disciples. But they were born again believers who had not heard of or received the baptism in the Holy Spirit. In verse 3 of the same chapter, they stated that they also were baptized in water, but again, not in the Holy Spirit. "And when Paul had laid his hands upon them, the Holy Spirit came on them; and they spoke with tongues, and prophesied." (Acts 19:6).
In addition, Peter found that the believers in the house of Cornelius had not received the baptism in the Holy Spirit after they were saved. As Peter preached unto them, "the Holy Spirit fell on all them which heard the Word. And they of the circumcision [the Jews] were astonished, as many as came with Peter, because that on the Gentiles also was poured out the Gift of the Holy Spirit. For they heard them speak with tongues, and magnify God. Then answered Peter, 'Can any man forbid water, that these should be baptized, which have received the Holy Spirit as well as we?'" (Acts 10:44-47). In this case, these believers were saved, but not baptized in water or in the Holy Spirit. They received the Holy Spirit and then were baptized in water at the direction of the Apostle Peter.
These experiences of the early Church portray several truths that are still applicable to the present day Church. First, the Lord commanded the Church to receive the Holy Spirit and this is what the Church leaders in the early Church preached and taught new converts. This is the message that Church leaders today should be preaching as well. Secondly, the only prerequisites to receive the Holy Spirit is to be born again and to seek God for the gift of the the Spirit. Jesus said, "If ye then, being evil, know how to give good gifts unto your children: how much more shall your heavenly Father give the Holy Spirit to them that ask him?" (Luke 11:13). Thirdly, whenever a person receives the baptism in the Holy Spirit, they speak with other tongues, just as the believers did in the examples mentioned above and on the day of Pentecost during the initial outpouring of the Holy Spirit. When those disciples received the Holy Spirit, they "began to speak with other tongues as the Spirit gave them utterance." (Acts 2:4).
The baptism in the Holy Spirit is a supernatural gift from God to His Church. This gift is always accompanied by the speaking in other tongues, a language that the believer does not know and has not learned. The utterances come from the Spirit of God and the believer simply yields the tongue to the Spirit to speak words from God. Tongues are used for several reasons: to pray, worship and to give messages from the Lord to the Church by way of interpretation of tongues.
First, "the Spirit also helps our infirmities: for we know not what we should pray for as we ought: but the Spirit Itself makes intercession for us with groanings which cannot be uttered. And He Who searches the hearts knows what is the Mind of the Spirit, because He makes intercession for the Saints according to the Will of God." (Romans 8:26-27). So we need the baptism in the Holy Spirit so that the Spirit of God can help us to pray according to the Word of God. Of course, the only way to have full assurance that our prayers will be answered by God is to pray according to His will, for the Apostle John said, "And this is the confidence that we have in Him, that, if we ask anything according to His Will, He hears us: And if we know that He hears us, whatsoever we ask, we know that we have the petitions that we desired of Him." (I John 5:14-15).
Secondly, "other tongues" helps us to offer up worship that is acceptable unto God, for "the hour comes, and now is, when the true worshippers shall worship the Father in spirit and in truth: for the Father seeketh such to worship Him." (John 4:23). The Apostle Paul told the Church in Corinth, "I will pray with the Spirit [in tongues, which he did not understand], and I will pray with understanding also [in his native language that he understood]: I will sing with the spirit, and I will sing with the understanding also." (I Corinthians 14:15).
The third use for tongues is to give messages to the Church through an individual who possesses the gift of the Spirit known as "divers kinds of tongues" and an individual who has the gift of the Spirit known as "interpretation of tongues", both mentioned in I Corinthians, Chapter 12. If the person with the gift of the Spirit of divers kinds of tongues is not sure that another person is present with the gift of the Spirit "interpretation of tongues," then the Apostle Paul said that "if there be no interpreter, let him keep silence in the Church; and let him speak to himself, and to God [in tongues]." (I Corinthians 14:28). Therefore, speaking in tongues to pray and worship can be done in the Church during times of prayer and worship, but the gift of the Spirit "divers kinds of tongues" should not be spoken without a person with the corresponding gift of the Spirit "interpretation of tongues."
Jesus commanded the Church to receive the baptism in the Holy Spirit in order to continue the work of God after His ascension. Anyone who refuses to believe or receive this gift is living in disobedience to God. This gift is necessary to give the Church the power to be witnesses of Jesus Christ in this world. It's the same power Jesus possessed after the Spirit came upon Him while being baptized in water by John the Baptist. Any Christian that is attempting to do the work of God without the baptism in the Holy Spirit is operating in what Paul called the "flesh," which is in our own abilities. We are told to operate in the Spirit, which is with God's abilities [the gifts of the Spirit].
I encourage every believer to receive the baptism in the Holy Spirit with the evidence of speaking in other tongues and experience what Jesus commanded us to receive when He said, "He who believes on Me, as the Scripture has said, out of his belly shall flow rivers of Living Water (But this spoke He of the Spirit, which they Who believe on Him should receive: for the Holy Spirit was not yet given; because that Jesus was not yet glorified)." (John 7:38-39). Jesus was glorified shortly after speaking these words, and since then has been baptizing His followers with the Holy Spirit whenever the believer seeks and believes this Word from God.