New Revised Standard Version
Indeed, this is our boast, the testimony of our conscience: we have behaved in the world with frankness and godly sincerity, not by earthly wisdom but by the grace of God—and all the more toward you.

Contemporary English Version
We can be proud of our clear conscience. We have always lived honestly and sincerely, especially when we were with you. And we were guided by God's gift of undeserved grace instead of by the wisdom of this world.

New American Bible
For our boast is this, the testimony of our conscience that we have conducted ourselves in the world, and especially toward you, with the simplicity and sincerity of God, [and] not by human wisdom but by the grace of God.

Douay-Rheims Bible
For our glory is this: the testimony of our conscience, that in simplicity of heart and sincerity of God, and not in carnal wisdom, but in the grace of God, we have conversed in this world: and more abundantly towards you.

For our glory is this: the testimony of our conscience, that in simplicity of heart and sincerity of God, and not in carnal wisdom, but in the grace of God, we have conversed in this world: and more abundantly towards you.

our rejoicing.

Job 13:15 Although he should kill me, I will trust in him: but yet I will reprove my ways in his sight.

Job 23:10-12 But he knoweth my way, and has tried me as gold that passeth through the fire: . . .

Job 27:5,6 God forbid that I should judge you to be just: till I die I will not depart from my innocence. . . .

Job 31:1-40 I made a covenant with my eyes, that I would not so much as think upon a virgin. . . .

Psalm 7:3-5 O Lord, my God, if I have done this thing, if there be iniquity in my hands: . . .

Psalm 44:17-21 At the voice of him that reproacheth and detracteth me: at the face of the enemy and persecutor. . . .

Isaiah 38:3 And said: I beseech thee, O Lord, remember how I have walked before thee in truth, and with a perfect heart, and have done that which is good in thy sight. And Ezechias wept with great weeping.

Acts 24:16 And herein do I endeavour to have always a conscience without offence, towards God and towards men.

Romans 9:1 I speak the truth in Christ: I lie not, my conscience bearing me witness in the Holy Ghost:

1 Corinthians 4:4 For I am not conscious to myself of anything. Yet am I not hereby justified: but he that judgeth me is the Lord.

Galatians 6:4 But let every one prove his own work: and so he shall have glory in himself only and not in another.

1 Timothy 1:5,19,20 Now the end of the commandment is charity from a pure heart, and a good conscience, and an unfeigned faith. . . .

Hebrews 13:18 Pray for us. For we trust we have a good conscience, being willing to behave ourselves well in all things.

1 Peter 3:16,21 But with modesty and fear, having a good conscience: that whereas they speak evil of you, they may be ashamed who falsely accuse your good conversation in Christ. . . .

1 John 3:19-22 In this we know that we are of the truth and in his sight shall persuade our hearts. . . .

simplicity.

2 Corinthians 11:3 But I fear lest, as the serpent seduced Eve by his subtilty, so your minds should be corrupted and fall from the simplicity that is in Christ.

Romans 16:18,19 For they that are such serve not Christ our Lord but their own belly: and by pleasing speeches and good words seduce the hearts of the innocent. . . .

godly.

2 Corinthians 2:17 For we are not as many, adulterating the word of God: but with sincerity: but as from God, before God, in Christ we speak.

2 Corinthians 8:8 I speak not as commanding: but by the carefulness of others, approving also the good disposition of your charity.

Joshua 24:14 Now therefore fear the Lord, and serve him with a perfect and most sincere heart: and put away the gods which your fathers served in Mesopotamia and in Egypt, and serve the Lord.

1 Corinthians 5:8 Therefore, let us feast, not with the old leaven, nor with the leaven of malice and wickedness: but with the unleavened bread of sincerity and truth.

Ephesians 6:14 Stand therefore, having your loins girt about with truth and having on the breastplate of justice:

Philippians 1:10 That you may approve the better things: that you may be sincere and without offence unto the day of Christ:

Titus 2:7 In all things shew thyself an example of good works, in doctrine, in integrity, in gravity,

not.

2 Corinthians 1:17 Whereas then I was thus minded, did I use lightness? Or, the things that I purpose, do I purpose according to the flesh, that there should be with me, It is, and It is not?

2 Corinthians 4:2 But we renounce the hidden things of dishonesty, not walking in craftiness nor adulterating the word of God: but by manifestation of the truth commending ourselves to every man's conscience, in the sight of God.

2 Corinthians 10:2-4 But I beseech you, that I may not be bold when I am present with that confidence wherewith I am thought to be bold, against some who reckon us as if we walked according to the flesh. . . .

2 Corinthians 12:15-19 But I most gladly will spend and be spent myself for your souls: although loving you more, I be loved less. . . .

1 Corinthians 2:4,5,13 And my speech and my preaching was not in the persuasive words of human wisdom. but in shewing of the Spirit and power: . . .

1 Corinthians 15:10 But by the grace of God, I am what I am. And his grace in me hath not been void: but I have laboured more abundantly than all they. Yet not I, but the grace of God with me:

James 3:13-18 Who is a wise man and endued with knowledge, among you? Let him shew, by a good contestation, his work in the meekness of wisdom. . . .

James 4:6 But he giveth greater grace. Wherefore he saith: God resisteth the proud and giveth grace to the humble.

we have.