What was cost of David sin with batsheba?

David's sin with Bathsheba led to significant personal and national consequences, including the death of their first child, as foretold by the prophet Nathan. Additionally, it resulted in turmoil within David's family, including rebellion and strife among his sons. This incident highlighted the severe repercussions of moral failings and the impact of sin on both personal and communal levels. Ultimately, it serves as a cautionary tale about the far-reaching effects of one's actions.