Romans 2:15 in that they show the work of the law written in their hearts, their conscience testifying with them, and their thoughts among themselves accusing or else excusing them) (WEB KJV ASV DBY WBS)
2 Corinthians 7:11 For, behold, this same thing, your being grieved according to God, how much diligence it wrought in you, but what excusing of yourselves, but what indignation, but what fear, but what ardent desire, but what zeal, but what vengeance: in every way ye have proved yourselves to be pure in the matter. (DBY)
2 Corinthians 12:19 Again, do you think that we are excusing ourselves to you? In the sight of God we speak in Christ. But all things, beloved, are for your edifying. (WEB ASV)
Hebrews 12:19 and trumpet's sound, and voice of words; which they that heard, excusing themselves, declined the word being addressed to them any more: (DBY)