# a strong, courageous man
Possible meanings are 1) "a great warrior" or 2) "a very brave man."
# one prudent in speech
"one wise in speech" or "one who speaks wisely"
# Yahweh is with him
Here "with him" means Yahweh helps and blesses David. (See: [[rc://en/ta/man/jit/figs-idiom]])