To drive home the call to fidelity and to warn of the consequences of unbelieving infidelity, the author referred to the classic failure of Israel at Kadesh Barnea which led to their 40-year detour in the wilderness. Far from being an ideal period of Israel’s history, as some sectarians seem to have held, it was an era marked by tragic loss and defeat. The readers were not to repeat such an experience in their own lives.
The text chosen by the writer to enforce the lesson they had in mind was taken from Psalm 95 (there is some discussion on why the author used Psalm 95 to quote from instead of Numbers 14, which is the historical account, but that is for another time and place). Verses 7–11 of that psalm are quoted here. The choice of this psalm is highly appropriate in a context that is concerned with worship and priestly activity. For Psalm 95 is, in fact, essentially a call to worship (cf. Ps. 95:1–7). The psalmists’ invitation, “Oh come, let us worship and bow down; let us kneel before the Lord, our Maker! For he is our God, and we are the people of his pasture, and the sheep of his hand.” (Ps. 95:6–7), ideally reflects the author’s perspective with regard to their readers. The material quoted in Hebrews immediately follows these words and, most naturally, must be understood against this background.
This quotation is a warning to the Jewish Christians about hardening their hearts to God and the salvation He offers. Moses’ generation had refused to trust God to provide for their needs in the wilderness (Ex 17:1-7), and the readers of this letter were in danger of not trusting in the salvation offered through God’s Son. If they were to hold fast to the end (Heb 3:6), they could not harden their hearts to God now (vv. 8, 13, 15). Instead they had to renew their belief in God’s Word (vv. 12, 19). “Rest” is a key concept in Hebrews. In the OT, the conquest of the Promised Land and the cessation of fighting in the land was viewed as a form of rest (Deut 3:20; 12:9; 25:19; Josh 11:23; 21:44; 22:4; 23:1). In the NT, rest generally speaks of the believer’s eternal home and the joy that he or she will experience in Jesus’ presence (Heb 4:1).