In Context

10 for they, indeed, for a few days, according to what seemed good to them, were chastening, but He for profit, to be partakers of His separation;

11 and all chastening for the present, indeed, doth not seem to be of joy, but of sorrow, yet afterward the peaceable fruit of righteousness to those exercised through it — it doth yield.

12 Wherefore, the hanging-down hands and the loosened knees set ye up;

13 and straight paths make for your feet, that that which is lame may not be turned aside, but rather be healed;

14 peace pursue with all, and the separation, apart from which no one shall see the Lord,

15 looking diligently over lest any one be failing of the grace of God, lest any root of bitterness springing up may give trouble, and through this many may be defiled;

Hebrews 12:13 in Other Translations