1 Peter 5:9

whom resist, steadfast in the faith, knowing that the very same sufferings are accomplished in your brethren, who are in the world.

2 Peter 3:17-18

Therefore, beloved, foreknowing these things, be on your guard; lest being also carried away by the deceit of the lawless, you fall from your own steadfastness.

Treasury of Scripture Knowledge

Summary

For though I be absent in the flesh, yet am I with you in the spirit, joying and beholding your order, and the stedfastness of your faith in Christ.

Bible References

And the

1 Peter 5:9
whom resist, steadfast in the faith, knowing that the very same sufferings are accomplished in your brethren, who are in the world.
2 Peter 3:17
Therefore, beloved, foreknowing these things, be on your guard; lest being also carried away by the deceit of the lawless, you fall from your own steadfastness.