'Lifetime' in the Bible

Now Absalom in his lifetime had taken and reared up for himself a pillar, which is in the king's dale: for he said, I have no son to keep my name in remembrance: and he called the pillar after his own name: and it is called unto this day, Absalom's place.

David went up to his house in Jerusalem, then the king took the ten concubines whom he had left to look after the house, and he put them {under confinement}. However, he provided for them, but {he did not sleep with them}. So they were confined until the day of their death, like a lifetime of widowhood.