'All the Days of His Life' in the Bible

She vowed a vow, and said, "LORD of hosts, if you will indeed look on the affliction of your handmaid, and remember me, and not forget your handmaid, but will give to your handmaid a boy, then I will give him to the LORD all the days of his life, and no razor shall come on his head."

But Hannah did not go up; for she said to her husband, "Not until the child is weaned; then I will bring him, that he may appear before the LORD, and stay there forever. I will offer him as a Nazirite forever, all the days of his life."

Samuel judged Israel all the days of his life.