Here are some verses which mention the Holy Spirit and will reinforce themes from the post. They are listed in scriptural order to make the look-ups less time consuming.
Psalm 51:9-11 speaks of the need to keep our hearts pure (clean from sin) for the presence of the Holy Spirit
John 3:1-8 speaks of the Spirit being like the wind.
John 7:38-39 speaks of the living water that the Holy Spirit is to our hearts.
John 14:16-17 speaks of the Holy Spirit as the Helper and the Spirit of truth.
John 14:23 speaks of the Holy Spirit teaching and reminding us of all Jesus has said.
Acts 2:38 speaks of the Holy Spirit as a gift to all who believe.
Romans 8:14 speaks of the true children of God as being those who are led by the Spirit of God.
Romans 14:17 speaks of life in the kingdom of God as righteousness, peace, and joy in the Holy Spirit.