Romans 8:26-29, “Likewise the Spirit also helpeth our infirmities: for we know not what we should pray for as we ought: but the Spirit itself maketh intercession for us with groanings which cannot be uttered. And he that searcheth the hearts knoweth what is the mind of the Spirit, because he maketh intercession for the saints according to the will of God. And we know that all things work together for good to them that love God, to them who are the called according to his purpose.
On the day of Pentecost the church was filled with the supernatural power of the Holy Ghost and spoke in tongues (languages) (Acts 1:8; 2:4). This is also called the baptism of the Holy Ghost, being filled with the Holy Ghost, and receiving the Holy Ghost which are all talking about the same experience. All three descriptions are used to describe the same experience each from the perspective of the three persons involved in the experience. It is called the BAPTISM OF THE HOLY GHOST because Jesus is the one who baptizes us (Matthew 3:11). It is called BEING FILLED WITH THE HOLY GHOST because the Holy Ghost fills you (Acts 2:4). It is called RECEIVING THE HOLY GHOST because the person has to do the receiving (Acts 19:2, 6). You can be full of the Spirit by being full of the Word (John 6:63) and full of prayer (Acts 4:31), but that is not the same as being baptized with the Holy Ghost. When you get baptized in the Holy Ghost, you speak in tongues (Acts 2:4; 10:44-46; 19:6).
Through praying in the Spirit or praying in other tongues, we get the Holy Ghost’s help with our infirmities. Infirmities are our weaknesses, a lack or want of strength, an incapacity, limitation or our inability to produce results. Just like the whole earth is travailing and in pain to give birth to a new heaven and new earth in order to be released from the limits imposed on it by the curse in the preceding context (Romans 8:18-22), we too have limitations imposed on us. It is the weakness of our flesh that imposes limits on us. It is part of what is holding us back. Jesus said, “The spirit indeed is willing, but the flesh is weak,” Matthew 26:41. It is weak for producing salvation or any degree of spirituality. The flesh can be controlling us, not just by the things we do, but when we cannot do the things we will to do (Romans 7:18; Galatians 5:17).
Through praying in the spirit, the Holy Ghost helps us by making intercession for us as we pray. He helps us, or takes hold together with us against our infirmities through His intercession. His intercession is with groaning or sighing, which cannot be uttered, or literally “without speaking” and “without sound” or without the kind of communication we can hear. The sighs are unutterable, unspeakable, and which cannot be uttered with words. The content, though, of His intercession is according to the will of God, which we know God hears and answers (1 John 5:14, 15). So the perfect petition and request for the answer we need is made for us by His help.
Sometimes we cannot or do not know how to get the help we need, but the Holy Ghost does. Even though the Holy Ghost’s or Spirit’s mind is not expressed in spoken language, the Father, who searches the heart of man, knows what the Spirit is communicating and goes about to work all things together for our good. As a result, the will of God is being prayed beyond our knowledge and mind as often as we pray in tongues. The Holy Ghost is not a substitute for our prayer life, and this does not happen automatically apart from our praying. If it happened apart from our praying by the Holy Ghost interceding, then we would not have an infirmity in the first place to have prayer for. His intercession would have already brought the will of God in our life. As often as you do pray, though, He helps us through His intercession.