his word: i.e. Joseph's word: i.e. his interpretation of the dreams.
came: came to pass. Compare Judges 7:13; Judges 7:21; 1 Samuel 9:6.
word. utterance, as in Psalms 119:38. what is said; here, the prophetic promise.
tried. proved: i.e. proved his faith in the Divine promise (Genesis 37:5-11).