What was the consequence of King David's sin?

Answer 1

David appeared to commit adultery but was not technically culpable, since the cuckolded man was a rebel who deserved to die, was sentenced to die, and had actually divorced his wife with whom David slept (Talmud, Shabbat 56a).Nonetheless, the circumstances were considered a blemish in David's otherwise perfect record of righteousness, and God punished him by taking the life of one of his sons; and two other sons (Absalom and Adonijah) rebelled against David's rule and ended up killed.

See also the Related Link.

Link: About King David

Answer 2

King David lost four children: Bathsheba's unborn son, Amnon, Absalom, and Tamar (in the sense that she was raped). Talmud, Yoma 22b.

Answer 3

He lost four children: Bathsheba's unborn son, Amnon, Absalom, and Tamar (in the sense that she was raped). Talmud, Yoma 22b.