Enquired of the Lord - Through Abiathar, the high priest. The death of Saul and Jonathan had entirely changed David’s position, and therefore he needed divine guidance how to act under the new circumstances in which he was placed. Compare the marginal references.
Hebron was well suited for the temporary capital of David’s kingdom, being situated in a strong position in the mountains of Judah, amidst David’s friends, and withal having especially sacred associations (see the marginal references note). It appears to have also been the center of a district 2 Samuel 2:3.