Horeb. So called here; not because the word of. later writer, but because "Horeb" was the higher name ("the mount of God", Exodus 3:1; 1 Kings 19:8), in order to show the heinousness of the sin.
Related Commentaries of Psalms 106:19
Psalms 106:19
19 They made a calf in Horeb, and worshipped the molten image.