Bible Verses About Holy spirit and prayer

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.KJV

Praying always with all prayer and supplication in the Spirit, and watching thereunto with all perseverance and supplication for all saints;KJV

But ye, beloved, building up yourselves on your most holy faith, praying in the Holy Ghost,KJV

What is it then? I will pray with the spirit, and I will pray with the understanding also: I will sing with the spirit, and I will sing with the understanding also.KJV

And because ye are sons, God hath sent forth the Spirit of his Son into your hearts, crying, Abba, Father.KJV