John Gill's Bible Commentary Ver. 3. So they sought for a fair damsel throughout all the coasts of Israel , etc.] Not only a damsel, but a beautiful one, that she might be the more acceptable to the king; who otherwise, if deformed and ugly, would not have endured her in his sight, or received at her hands, and much less suffered her to lie in his bosom: and found Abishag a Shunammite ; a native of the city Shunem, a city in the tribe of Issachar, ( Joshua 19:18); and brought her to the king ; for his approbation of her, and to make her his concubine wife, as he did.
Matthew Henry Commentary
Verses 1-4 - We have David sinking under infirmities. He was chastised for his recent sins, and felt the effects of his former toils and hardships.
Original Hebrew ויבקשׁו1245 נערה5291 יפה3303 בכל3605 גבול1366 ישׂראל3478 וימצאו4672 את853 אבישׁג49 השׁונמית7767 ויבאו935 אתה853 למלך׃4428