Behold. Meaning, “pay attention.” What follows is most important.
Sleep. See the same expression for death in 2 Sam. 7:12; 1 Kings 2:10; 11:43.
This people. A sad picture of the future history of God’s people.
Whoring. See on Ex. 34:15. There were certain tendencies already manifest that indicated the future conduct of the nation (see Judges 2:7-17). The psalmist has recorded a sad chapter in Israel’s history (see Ps. 106:34-39). They were told not to fear the heathen gods (Judges 6:10), and knew well their duty to the true God (Ex. 20:3).
Break my covenant. By the worship of other gods (see Ex. 20:22, 23; 23:32, 33; Deut. 5:3, 4; 6:3, 4). In entering into the covenant relationship they had agreed to recognize the Lord as God, and to love and serve Him only.