Hebrews 10:23

Let us hold fast. Again and again Christ and the NT writers stress the importance of endurance and perseverance (see Matt. 10:22; 24:13; Col. 1:23; etc.). There is danger that those who have entered upon the new life in Christ will become “weary in well doing” (Gal. 6:9), that they will relax their hold upon the eternal verities of God’s Word. See on Heb. 3:6.

Profession. See on ch. 3:1.

Our faith. Literally, “our hope,” that is, the hope of salvation through Christ (see on Titus 2:13; cf. Heb. 3:6; 6:11, 18, 19).

Without wavering. “Wavering” is the opposite of holding fast (see on Matt. 24:13; cf. Heb. 4:14; 10:35, 36). As a result of “wavering” at Kadesh-bamea the generation of Israelites that left Egypt could not enter into the Land of Promise. Their “wavering” was the result of a lack of faith (see on Heb. 3:12, 18, 19; 11:1).

He is faithful. That is, God is faithful in keeping His promises — of deliverance from Egypt and entrance into Canaan, and of deliverance from sin and entrance into the blessings of salvation in Christ Jesus. Since God is faithful and does not waver in fulfilling His promises, we should be faithful and not waver in accepting them. The faithfulness of Christ as our great High Priest is stressed in eh. 3:2, 5, 6.

That promised. The writer doubtless thinks back to the promises made to Abraham and his descendants with respect to the land of Canaan (see on Gen. 15:18; Heb. 4:1), but the promise of salvation through Jesus Christ is uppermost in his mind (cf. John 3:16; see on Matt. 1:21).