Charles Ellicott Commentary 2 Samuel 11:4

"And David sent messengers, and took her; and she came in unto him, and he lay with her (for she was purified from her uncleanness); and she returned unto her house." — 2 Samuel 11:4 (ASV)

Sent messengers, and took her. — This does not imply the use of violence. Bath-sheba, however beautiful, appears from the narrative of 1 Kings 2:13–22, to have been a woman of little discretion, and now yielded to David’s will without resistance, perhaps flattered by the approach of the king.

For she was. — Read, and she was. Under the Law she was unclean until the evening. She therefore remained in David’s palace until that time, scrupulous in this detail while conscious of a capital crime and a high offence against God. David, nevertheless, was a far greater offender.