When I was a son to my father, tender and the only child of my mother,

1 Chronicles 22:5
And David said, "My son Solomon is young and inexperienced, and the house to be built for the LORD must be exceedingly magnificent--famous and glorious throughout all lands. Therefore I must make preparations for it." So David made lavish preparations before his death.

1 Chronicles 29:1
Then King David said to the whole assembly, "My son Solomon, the one whom God has chosen, is young and inexperienced. The task is great because this palace is not for man, but for the LORD God.

Zechariah 12:10
Then I will pour out on the house of David and on the people of Jerusalem a spirit of grace and prayer, and they will look on Me, the One they have pierced. They will mourn for Him as one mourns for an only child, and grieve bitterly for Him as one grieves for a firstborn son.

For I was my father's son, tender and only beloved in the sight of my mother.