Romans 9:1

I am speaking the truth as one in union with Christ; it is no lie; and my conscience, enlightened by the Holy Spirit,

Galatians 1:20

(As to what I am now writing to you, I call God to witness that I am speaking the truth).

1 Timothy 2:7

and it was for this that I was myself appointed a Herald and an Apostle (I am telling the simple truth and no lie)--a Teacher of the Gentiles in the Faith and Truth.

Romans 1:9

God, to whom I offer the worship of my soul as I tell the Goodness of his Son, is my witness how constantly I mention you when I pray,

Romans 8:16

The Spirit himself unites with our spirits in bearing witness to our being God's children,

2 Corinthians 11:10

As surely as I know anything of the Truth of Christ, this boast, as far as I am concerned, shall not be stopped in any part of Greece.

2 Corinthians 12:19

Have you all this time been fancying that it is to you that we are making our defense? No, it is in the sight of God, and in union with Christ, that we are speaking. And all this, dear friends, is to build up your characters;

Romans 2:15

For they show the demands of the Law written upon their hearts; their consciences corroborating it, while in their thoughts they argue either in self-accusation or, it may be, in self- defense--

2 Corinthians 1:12

Indeed, our main ground for satisfaction is this--Our conscience tells us that our conduct in the world, and still more in our relations with you, was marked by a purity of motive and a sincerity that were inspired by God, and was based, not on worldly policy, but on the help of God.

2 Corinthians 1:23

But, as my life shall answer for it, I call God to witness that it was to spare you that I deferred my visit to Corinth.

2 Corinthians 11:31

The God and Father of the Lord Jesus--he who is for ever blessed--knows that I am speaking the truth.

Philippians 1:8

God will bear me witness how I yearn over you all with the tenderness of Christ Jesus.

1 Thessalonians 2:5

Never at any time, as you know, did we use the language of flattery, or make false professions in order to hide selfish aims. God will bear witness to that.

1 Timothy 1:5

The object of all instruction is to call forth that love which comes from a pure heart, a clear conscience, and a sincere faith.

1 Timothy 5:21

I charge you solemnly, before God and Christ Jesus and the Chosen Angels, to carry out these directions, unswayed by prejudice, never acting with partiality.

1 John 3:19-21

By that we shall know that we are on the side of the Truth; and we shall satisfy ourselves in God's sight,

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
God, to whom I offer the worship of my soul as I tell the Goodness of his Son, is my witness how constantly I mention you when I pray,
2 Corinthians 1:23
But, as my life shall answer for it, I call God to witness that it was to spare you that I deferred my visit to Corinth.
2 Corinthians 11:31
The God and Father of the Lord Jesus--he who is for ever blessed--knows that I am speaking the truth.
2 Corinthians 12:19
Have you all this time been fancying that it is to you that we are making our defense? No, it is in the sight of God, and in union with Christ, that we are speaking. And all this, dear friends, is to build up your characters;
Galatians 1:20
(As to what I am now writing to you, I call God to witness that I am speaking the truth).
Philippians 1:8
God will bear me witness how I yearn over you all with the tenderness of Christ Jesus.
1 Thessalonians 2:5
Never at any time, as you know, did we use the language of flattery, or make false professions in order to hide selfish aims. God will bear witness to that.
1 Timothy 2:7
and it was for this that I was myself appointed a Herald and an Apostle (I am telling the simple truth and no lie)--a Teacher of the Gentiles in the Faith and Truth.
1 Timothy 5:21
I charge you solemnly, before God and Christ Jesus and the Chosen Angels, to carry out these directions, unswayed by prejudice, never acting with partiality.

My conscience

Romans 2:15
For they show the demands of the Law written upon their hearts; their consciences corroborating it, while in their thoughts they argue either in self-accusation or, it may be, in self- defense--
Romans 8:16
The Spirit himself unites with our spirits in bearing witness to our being God's children,
2 Corinthians 1:12
Indeed, our main ground for satisfaction is this--Our conscience tells us that our conduct in the world, and still more in our relations with you, was marked by a purity of motive and a sincerity that were inspired by God, and was based, not on worldly policy, but on the help of God.
1 Timothy 1:5
The object of all instruction is to call forth that love which comes from a pure heart, a clear conscience, and a sincere faith.
1 John 3:19
By that we shall know that we are on the side of the Truth; and we shall satisfy ourselves in God's sight,

General references

Acts 24:16
This being so, I strive at all times to keep my conscience clear before both God and man.