NET
15 He said, “The Lord God of Israel is worthy of praise because he has fulfilled what he promised my father David.
Darby
15 And he said: Blessed be Jehovah the God of Israel, who spoke with his mouth unto David my father, and hath with his hand fulfilled it, saying,
KJV
15 And he said, Blessed [be] the LORD God of Israel, which spake with his mouth unto David my father, and hath with his hand fulfilled [it], saying,