On the seventh day; either,
1. From the beginning of the distemper. Or rather,
2. From the day of his birth, which is the most usual way of computation of men's days or years; for it is apparent that this happened during the time of David's fasting and lying upon the earth, 2 Samuel 12:20, which it is not probable that it lasted for seven days. They said, whispering among themselves, 2 Samuel 12:19.