2 Corinthians 5:20
Now then we are ambassadors for Christ, as though God did beseech you by us: we pray you on Christ's behalf, be reconciled to God.
I would seek unto God, and unto God would I commit my cause:
If you shall afflict my daughters, or if you shall take other wives beside my daughters, no man is with us; see, God is witness between me and you.
I call heaven and earth as witness this day against you, that I have set before you life and death, blessing and cursing: therefore choose life, that both you and your descendants may live:
And the elders of Gilead said unto Jephthah, The LORD be witness between us, if we do not so according to your words.
1 Samuel 12:5
And he said unto them, The LORD is witness against you, and his anointed is witness this day, that you have not found anything in my hand. And they answered, He is witness.
Also now, behold, my witness is in heaven, and my record is on high.
For God is my witness, whom I serve with my spirit in the gospel of his Son, that without ceasing I make mention of you always in my prayers;
2 Corinthians 1:23
Moreover I call God for a witness upon my soul, that to spare you I came not as yet unto Corinth.
For God is my witness, how greatly I long after you all in the affections of Jesus Christ.
1 Thessalonians 2:5
For neither at any time used we flattering words, as you know, nor a cloak of covetousness; God is witness: