Acts 24:16

And so I do my best always to have a clear conscience before God and men.

2 Corinthians 12:11

I have been a fool! You forced me to it, for I ought to have been commended by you. For I was not in the least inferior to these super-apostles, even though I am nothing.

1 John 3:20-21

whenever our hearts condemn us; for God is greater than our hearts, and he knows everything.

Treasury of Scripture Knowledge

Summary

My righteousness I hold fast, and will not let it go: my heart shall not reproach me so long as I live.

General references

Bible References

My heart

Acts 24:16
And so I do my best always to have a clear conscience before God and men.
2 Corinthians 12:11
I have been a fool! You forced me to it, for I ought to have been commended by you. For I was not in the least inferior to these super-apostles, even though I am nothing.
1 John 3:20
whenever our hearts condemn us; for God is greater than our hearts, and he knows everything.

General references

1 John 3:21
Beloved, if our hearts do not condemn us, we have confidence before God;