# I will give them a heart to know me

Here "a heart" refers to their desires. AT: "I will cause them to desire to know me" (See: [[rc://en/ta/man/translate/figs-metonymy]])

# they will turn to me with all their heart

Here "all their heart is an idiom that means "completely." AT: "they will turn to me completely" or "they will turn to me without reservation" (See: [[rc://en/ta/man/translate/figs-idiom]])