Romans 9:1

I say the truth in Christ, I lye not, (my conscience bearing me witness in the holy Ghost,)

Galatians 1:20

(Now in what I write to you, behold, before God, I do not lie.)

1 Timothy 2:7

for which I was appointed a herald and an apostle. I speak the truth in Christ, I lie not; I am a teacher of the Gentiles in faith and truth.

Romans 1:9

for God is my witness, whom I serve with my spirit in the gospel of his Son, how incessantly I make mention of you always in my prayers,

Romans 8:16

So that the Spirit itself beareth witness with our spirit, that we are the children of God.

2 Corinthians 11:10

As the truth of Christ is in me, this boast shall not be taken from me in the regions of Achaia.

2 Corinthians 12:19

Do ye then think that we are making apologies to you? No, we speak before God in Christ: and all, my beloved, for your edification.

Romans 2:15

and shew the work of the law written on their hearts, their conscience witnessing together with it, and their own thoughts either accusing, or excusing them,)

2 Corinthians 1:12

For this is our rejoicing, the testimony of our conscience, that in simplicity and pious sincerity, not with carnal wisdom, but by the grace of God, we have had our conversation in the world, and especially towards you.

2 Corinthians 1:23

But I call God to witness on my soul, that to spare you I came not as yet to Corinth:

2 Corinthians 11:31

And the God and Father of our Lord Jesus Christ, who is blessed for ever, knoweth that I lye not.

Philippians 1:8

For God is my witness, how much I long for you all, as with the bowels of Jesus Christ.

1 Thessalonians 2:5

For neither at any time used we flattering speech, as ye know, nor covetous pretence, God is witness:

1 Timothy 1:5

so do, and acquaint them that the end of that charge is charity, out of a pure heart, and a good conscience, and faith unfeigned:

1 Timothy 5:21

I charge thee before God, and the Lord Jesus Christ, and the elect angels, that thou keep to these things without preference of persons, doing nothing with partiality.

1 John 3:19-21

And hereby we know that we are of the truth, and shall assure our hearts before Him.

Treasury of Scripture Knowledge

Summary

I say the truth in Christ, I lie not, my conscience also bearing me witness in the Holy Ghost,

General references

Bible References

I say

Romans 1:9
for God is my witness, whom I serve with my spirit in the gospel of his Son, how incessantly I make mention of you always in my prayers,
2 Corinthians 1:23
But I call God to witness on my soul, that to spare you I came not as yet to Corinth:
2 Corinthians 11:31
And the God and Father of our Lord Jesus Christ, who is blessed for ever, knoweth that I lye not.
2 Corinthians 12:19
Do ye then think that we are making apologies to you? No, we speak before God in Christ: and all, my beloved, for your edification.
Galatians 1:20
(Now in what I write to you, behold, before God, I do not lie.)
Philippians 1:8
For God is my witness, how much I long for you all, as with the bowels of Jesus Christ.
1 Thessalonians 2:5
For neither at any time used we flattering speech, as ye know, nor covetous pretence, God is witness:
1 Timothy 2:7
for which I was appointed a herald and an apostle. I speak the truth in Christ, I lie not; I am a teacher of the Gentiles in faith and truth.
1 Timothy 5:21
I charge thee before God, and the Lord Jesus Christ, and the elect angels, that thou keep to these things without preference of persons, doing nothing with partiality.

My conscience

Romans 2:15
and shew the work of the law written on their hearts, their conscience witnessing together with it, and their own thoughts either accusing, or excusing them,)
Romans 8:16
So that the Spirit itself beareth witness with our spirit, that we are the children of God.
2 Corinthians 1:12
For this is our rejoicing, the testimony of our conscience, that in simplicity and pious sincerity, not with carnal wisdom, but by the grace of God, we have had our conversation in the world, and especially towards you.
1 Timothy 1:5
so do, and acquaint them that the end of that charge is charity, out of a pure heart, and a good conscience, and faith unfeigned:
1 John 3:19
And hereby we know that we are of the truth, and shall assure our hearts before Him.

General references

Acts 24:16
And on this account do I exercise myself, to have always a conscience void of offence both towards God and towards men.