Seeking God represents either 1) asking God for help or 2) thinking about God and obeying him. Alternate translation: "you who ask God for help" or "you who think about God" (See: [[rc://en/ta/man/translate/figs-metaphor]])
Here "hearts" refer to the people. Here "live" is an idiom that means to be encouraged. Alternate translation: "may you be encouraged" (See: [[rc://en/ta/man/translate/figs-synecdoche]])