1 Corinthians 14:15

What should I do then? I will pray with my spirit [i.e. from within], and I will pray with my understanding also [i.e., with a knowledge of what I am saying]. I will sing with my spirit, and I will sing with my understanding also.

Colossians 3:16

You should let the message of Christ live in you abundantly [i.e., as individuals and collectively]. Use [much] wisdom in teaching and warning one another with psalms, hymns and spiritual songs, singing with favor [i.e., with thankfulness] in your hearts toward God.

John 4:23-24

But the time will come, and is now [actually] here, when the true worshipers will worship the Father in spirit [i.e., from the heart] and truth [i.e., according to God's revealed will], for these are the people whom the Father seeks to be His worshipers.

Romans 1:9

For God, whom I serve wholeheartedly in [preaching] the Gospel of His Son, is my witness [to the truth] of how continually I mention you in my prayers.

Romans 3:5

Now if our wrongdoing serves to emphasize more clearly that God does what is right, what should we say about that? Is God being unjust for sending [His] wrath [on the world]? (I am raising a human objection).

Romans 8:31

What then should we conclude from this? [Just this]: If God is on our side, who can [successfully] oppose us?

Romans 12:1-2

So, I urge you, brothers, because God is so merciful [to us], to offer your bodies as a living sacrifice, [fully] dedicated and very pleasing to God. For this is a reasonable [or spiritual] way for you to worship [or serve] Him.

1 Corinthians 10:19

So, what am I saying? That an animal sacrificed to idols is [really] anything, or that an idol [itself] is anything?

1 Corinthians 14:19

However, in the assembly I would rather speak five words with my understanding, so that I can instruct other people also, than to speak ten thousand words in a language [that people do not understand].

Ephesians 5:17-20

Therefore, do not be foolish, but understand what the Lord wants you to do.

Ephesians 6:18

[Then] offer all kinds of prayers and requests in [harmony with] the Holy Spirit at all times, and be alert constantly in making requests for all the saints [i.e., God's holy people].

Philippians 1:18

So, what [should I think about the situation]? Just this: I am happy and will continue to be happy that, in every way, Christ is being preached, [regardless of] whether it is in pretense or with sincerity.

Jude 1:20

But, you dearly loved ones, build yourselves up [spiritually] on [the foundation of] your most sacred faith; pray in [the power of] the Holy Spirit.

Treasury of Scripture Knowledge

Summary

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.

And i will sing

Bible References

What

1 Corinthians 10:19
So, what am I saying? That an animal sacrificed to idols is [really] anything, or that an idol [itself] is anything?
Romans 3:5
Now if our wrongdoing serves to emphasize more clearly that God does what is right, what should we say about that? Is God being unjust for sending [His] wrath [on the world]? (I am raising a human objection).
Romans 8:31
What then should we conclude from this? [Just this]: If God is on our side, who can [successfully] oppose us?
Philippians 1:18
So, what [should I think about the situation]? Just this: I am happy and will continue to be happy that, in every way, Christ is being preached, [regardless of] whether it is in pretense or with sincerity.

I will pray with the spirit

1 Corinthians 14:19
However, in the assembly I would rather speak five words with my understanding, so that I can instruct other people also, than to speak ten thousand words in a language [that people do not understand].
John 4:23
But the time will come, and is now [actually] here, when the true worshipers will worship the Father in spirit [i.e., from the heart] and truth [i.e., according to God's revealed will], for these are the people whom the Father seeks to be His worshipers.
Romans 1:9
For God, whom I serve wholeheartedly in [preaching] the Gospel of His Son, is my witness [to the truth] of how continually I mention you in my prayers.
Ephesians 5:17
Therefore, do not be foolish, but understand what the Lord wants you to do.
Ephesians 6:18
[Then] offer all kinds of prayers and requests in [harmony with] the Holy Spirit at all times, and be alert constantly in making requests for all the saints [i.e., God's holy people].
Colossians 3:16
You should let the message of Christ live in you abundantly [i.e., as individuals and collectively]. Use [much] wisdom in teaching and warning one another with psalms, hymns and spiritual songs, singing with favor [i.e., with thankfulness] in your hearts toward God.
Jude 1:20
But, you dearly loved ones, build yourselves up [spiritually] on [the foundation of] your most sacred faith; pray in [the power of] the Holy Spirit.

And i will sing

Romans 12:1
So, I urge you, brothers, because God is so merciful [to us], to offer your bodies as a living sacrifice, [fully] dedicated and very pleasing to God. For this is a reasonable [or spiritual] way for you to worship [or serve] Him.