I say
Romans 1:9
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 record upon my soul, that to spare you I came not as yet unto Corinth.
2 Corinthians 11:31
The God and Father of our Lord Jesus Christ, which is blessed for evermore, knoweth that I lie not.
2 Corinthians 12:19
Again, think ye that we excuse ourselves unto you? we speak before God in Christ: but we do all things, dearly beloved, for your edifying.
Galatians 1:20
Now the things which I write unto you, behold, before God, I lie not.
Philippians 1:8
For God is my record, how greatly I long after you all in the bowels of Jesus Christ.
1 Thessalonians 2:5
For neither at any time used we flattering words, as ye know, nor a cloke of covetousness; God is witness:
1 Timothy 2:7
Whereunto I am ordained a preacher, and an apostle, (I speak the truth in Christ, and lie not;) a teacher of the Gentiles in faith and verity.
1 Timothy 5:21
I charge thee before God, and the Lord Jesus Christ, and the elect angels, that thou observe these things without preferring one before another, doing nothing by partiality.
my conscience
Romans 2:15
Which shew the work of the law written in their hearts, their conscience also bearing witness, and their thoughts the mean while accusing or else excusing one another;)
Romans 8:16
The Spirit itself beareth witness with our spirit, that we are the children of God:
2 Corinthians 1:12
For our rejoicing is this, the testimony of our conscience, that in simplicity and godly sincerity, not with fleshly wisdom, but by the grace of God, we have had our conversation in the world, and more abundantly to you-ward.
1 Timothy 1:5
Now the end of the commandment is charity out of a pure heart, and of a good conscience, and of faith unfeigned:
1 John 3:19-21
19
And hereby we know that we are of the truth, and shall assure our hearts before him.
20
For if our heart condemn us, God is greater than our heart, and knoweth all things.
21
Beloved, if our heart condemn us not, then have we confidence toward God.