The first part of the verse is quoted from Hab. 2:4 (see comment there and on Rom. 1:17; cf. Gal. 3:11). Here, “the just” are to “live by faith” while awaiting the promised coming of Christ. By faith they are to endure patiently the troublous times that precede His advent.

 That is, cast away his confidence (see v. 35).

 A common Biblical expression meaning “I” (see on Ps. 16:10).

 Those who “draw back” from the pathway of faith can never expect to hear the words, “Well done, thou good and faithful servant: ... enter thou into the joy of thy lord” (Matt. 25:21).