You have kept Your promise to Your servant, my father David. What You spoke with Your mouth You have fulfilled with Your hand this day.
KJV
Who hast kept with thy servant David my father that thou promisedst him: thou spakest also with thy mouth, and hast fulfilled [it] with thine hand, as [it is] this day.
ASV
who hast kept with thy servant David my father that which thou didst promise him: yea, thou spakest with thy mouth, and hast fulfilled it with thy hand, as it is this day.