Cross reference
1 Corinthians 14:15
15 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.
Colossians 3:16
16 Let the word of Christ dwell in you richly; in all wisdom teaching and admonishing one another with psalms `and' hymns `and' spiritual songs, singing with grace in your hearts unto God.
Ephesians 6:18
18 with all prayer and supplication praying at all seasons in the Spirit, and watching thereunto in all perseverance and supplication for all the saints,
John 4:23-24
23 But the hour cometh, and now is, when the true worshippers shall worship the Father in spirit and truth: for such doth the Father seek to be his worshippers.
24 God is a Spirit: and they that worship him must worship in spirit and truth.
Psalms 47:7
7 For God is the King of all the earth: Sing ye praises with understanding.
Jude 1:20
20 But ye, beloved, building up yourselves on your most holy faith, praying in the Holy Spirit,
Philippians 1:18
18 What then? only that in every way, whether in pretence or in truth, Christ is proclaimed; and therein I rejoice, yea, and will rejoice.
Ephesians 5:17-20
17 Wherefore be ye not foolish, but understand what the will of the Lord is.
18 And be not drunken with wine, wherein is riot, but be filled with the Spirit;
19 speaking one to another in psalms and hymns and spiritual songs, singing and making melody with your heart to the Lord;
20 giving thanks always for all things in the name of our Lord Jesus Christ to God, even the Father;
1 Corinthians 14:19
19 howbeit in the church I had rather speak five words with my understanding, that I might instruct others also, than ten thousand words in a tongue.
1 Corinthians 10:19
19 What say I then? that a thing sacrificed to idols is anything, or that an idol is anything?
Romans 12:1-2
1 I beseech you therefore, brethren, by the mercies of God, to present your bodies a living sacrifice, holy, acceptable to God, `which is' your spiritual service.
2 And be not fashioned according to this world: but be ye transformed by the renewing of your mind, and ye may prove what is the good and acceptable and perfect will of God.
Romans 3:5
5 But if our righteousness commendeth the righteousness of God, what shall we say? Is God unrighteous who visiteth with wrath? (I speak after the manner of men.)
Romans 8:31
31 What then shall we say to these things? If God `is' for us, who `is' against us?
Romans 1:9
9 For God is my witness, whom I serve in my spirit in the gospel of his Son, how unceasingly I make mention of you, always in my prayers