1 Peter 1:22

Wherefore, having purified your souls by obeying the truth, through the Spirit, to unfeigned brotherly love, love one another, from a pure heart, fervently:

1 Peter 2:9

but you are an elect race, a royal priesthood, a holy nation, a purchased people; that you should declare the perfections of him who has called you from darkness into his marvelous light:

1 Peter 3:1

In like manner, let the wives be in subjection to their own husbands; that, indeed, if any obey not the word, they, without the word, may be won by the behavior of their wives,

1 Peter 4:2-5

so that he no longer lives his remaining time in the flesh, to the lusts of men, but to the will of God.

1 Peter 4:17

Indeed, the time is come that punishment must begin at the house of God; and if it begin first at us, what the end of them who do not obey the gospel of God?

2 John 1:4

I rejoiced greatly, when I found some of your children walking in truth, as we received commandment from the Father.

3 John 1:3

For I rejoiced greatly, when the brethren came, and bore witness to your truth, even as you walk in truth.

Treasury of Scripture Knowledge

Summary

But God be thanked, that ye were the servants of sin, but ye have obeyed from the heart that form of doctrine which was delivered you.

Bible References

But

2 John 1:4
I rejoiced greatly, when I found some of your children walking in truth, as we received commandment from the Father.
3 John 1:3
For I rejoiced greatly, when the brethren came, and bore witness to your truth, even as you walk in truth.

That

1 Peter 2:9
but you are an elect race, a royal priesthood, a holy nation, a purchased people; that you should declare the perfections of him who has called you from darkness into his marvelous light:
1 Peter 4:2
so that he no longer lives his remaining time in the flesh, to the lusts of men, but to the will of God.

But ye

1 Peter 1:22
Wherefore, having purified your souls by obeying the truth, through the Spirit, to unfeigned brotherly love, love one another, from a pure heart, fervently:
1 Peter 3:1
In like manner, let the wives be in subjection to their own husbands; that, indeed, if any obey not the word, they, without the word, may be won by the behavior of their wives,
1 Peter 4:17
Indeed, the time is come that punishment must begin at the house of God; and if it begin first at us, what the end of them who do not obey the gospel of God?