## For you have forgotten ##
Here "you" refers to the people of Israel. The word "forgotten" does not mean they have no memory of God. It means they no longer obey him. AT: "For you no longer obey"
## the God of your salvation ##
"the God who saves you"
## and have ignored the rock of your strength ##
This compares God to a rock. This emphasizes his strength and ability to protect. (See: [[rc://en/ta/man/translate/figs-metaphor]])