Romans 1:9
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,
Romans 9:1
I am speaking a truth in Christ?? am not lying, my conscience testifying with me in the Holy Spirit??2 that I have great sorrow and unceasing pain in my heart
2 Corinthians 1:23
But I invoke God as a witness upon my soul, that, as sparing you, I came not yet to Corinth.
2 Corinthians 11:31
The God and Father of our Lord Jesus Christ, Who is blessed forevermore, knoweth that I lie not.
1 Thessalonians 2:5
For neither, at any time, did we use a word of flattery, as ye know, nor a semblance of covetousness, God is witness;
1 Thessalonians 2:10
Ye are witnesses, and God, how piously and righteously and unblamably we behaved toward you who believe;