Romans 9:1
I tell the truth in Christ. I am not lying, my conscience testifying with me in the Holy Spirit,
Galatians 1:20
Now about the things which I write to you, behold, before God, I'm not lying.
1 Timothy 2:7
to which I was appointed a preacher and an apostle (I am telling the truth in Christ, not lying), a teacher of the Gentiles in faith and truth.
Romans 1:9
For God is my witness, whom I serve in my spirit in the Good News of his Son, how unceasingly I make mention of you always in my prayers,
Romans 8:16
The Spirit himself testifies with our spirit that we are children of God;
2 Corinthians 11:10
As the truth of Christ is in me, no one will stop me from this boasting in the regions of Achaia.
2 Corinthians 12:19
Again, do you think that we are excusing ourselves to you? In the sight of God we speak in Christ. But all things, beloved, are for your edifying.
Romans 2:15
in that they show the work of the law written in their hearts, their conscience testifying with them, and their thoughts among themselves accusing or else excusing them)
2 Corinthians 1:12
For our boasting is this: the testimony of our conscience, that in holiness and sincerity of God, not in fleshly wisdom but in the grace of God we behaved ourselves in the world, and more abundantly toward you.
2 Corinthians 1:23
But I call God for a witness to my soul, that I didn't come to Corinth to spare you.
2 Corinthians 11:31
The God and Father of the Lord Jesus Christ, he who is blessed forevermore, knows that I don't lie.
Philippians 1:8
For God is my witness, how I long after all of you in the tender mercies of Christ Jesus.
1 Thessalonians 2:5
For neither were we at any time found using words of flattery, as you know, nor a cloak of covetousness (God is witness),
1 Timothy 1:5
but the goal of this command is love, out of a pure heart and a good conscience and sincere faith;
1 Timothy 5:21
I command you in the sight of God, and Christ Jesus, and the chosen angels, that you observe these things without prejudice, doing nothing by partiality.
1 John 3:19-21
And by this we know that we are of the truth, and persuade our hearts before him,