For I, too, was the son of my father, tender and an only son in the sight of my mother
Other versions
King James Version
For I was my father's son, tender and only beloved in the sight of my mother.English Standard Version
When I was a son with my father, tender, the only one in the sight of my mother,New International Version
When I was a boy in my father's house, still tender, and an only child of my mother,