Then he said: "Praise be to the LORD, the God of Israel, who with his own hand has fulfilled what he promised with his own mouth to my father David. For he said,"
NIV
He said, Blessed be the Lord, the God of Israel, Who spoke with His mouth to David my father and has with His hand fulfilled it, saying
AMP
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,
KJV
"Now, LORD my God, you have made your servant king in place of my father David. But I am only a little child and do not know how to carry out my duties."
NIV
Now, O Lord my God, You have made Your servant king instead of David my father, and I am but a lad [in wisdom and experience]; I know not how to go out (begin) or come in (finish).
AMP
And now, O LORD my God, thou hast made thy servant king instead of David my father: and I am but a little child: I know not how to go out or come in.
KJV