The fact that the subject is continued in Psa 78:17 with ויּוסיפוּ without mention having been made of any sinning on the part of the generation of the desert, is explicable from the consideration that the remembrance of that murmuring is closely connected with the giving of water from the rock to which the names Massah u - Merı̂bah and Merı̂bath - Kadesh (cf. Num 20:13 with Num 27:14; Deu 32:51) point back: they went on (עוד) winning against Him, in spite of the miracles they experienced. למרות is syncopated from להמרות as in Isa 3:8. The poet in Psa 78:18 condenses the account of the manifestations of discontent which preceded the giving of the quails and manna (Ex. 16), and the second giving of quails (Num. 11), as he has done the two cases of the giving of water from the rock in Psa 78:15. They tempted God by unbelievingly and defiantly demanding (לשׁאל, postulando, Ew. §280, d) instead of trustfully hoping and praying. בּלבבם points to the evil fountain of the heart, and לנפשׁם describes their longing as a sensual eagerness, a lusting after it. Instead of allowing the miracles hitherto wrought to work faith in them, they made the miracles themselves the starting-point of fresh doubts. The poet here clothes what we read in Exo 16:3; Num 11:4., Psa 21:5, in a poetic dress. In לעמּו the unbelief reaches it climax, it sounds like self-irony. On the co-ordinating construction “therefore Jahve heard it and was wroth,” cf. Isa 5:4; Isa 12:1; Isa 50:2; Rom 6:17. The allusion is to the wrath-burning at Taberah (Tab'eera), Num 11:1-3, which preceded the giving of the quails in the second year of the Exodus. For it is obvious that Psa 78:21 and Num 11:1 coincide, ויתעבר ואשׁ here being suggested by the ותבער־בם אשׁ eht yb d of that passage, and אף עלה being the opposite of ותשׁקע האשׁ in Psa 78:2. A conflagration broke out at that time in the camp, at the same time, however, with the breaking out of God's anger. The nexus between the anger and the fire is here an outward one, whereas in Num 11:1 it is an internal one. The ground upon which the wrathful decree is based, which is only hinted at there, is here more minutely given in Psa 78:22 : they believed not in Elohim (vid., Num 14:11), i.e., did not rest with believing confidence in Him, and trusted not in His salvation, viz., that which they had experienced in the redemption out of Egypt (Exo 14:13; Exo 15:2), and which was thereby guaranteed for time to come.
