Three days and nights — One whole day and part of two others, as appears from the next verse, where he saith, three days ago I fell sick, but in the Hebrew it is, this is the third day since I fell sick.
Related Commentaries of 1 Samuel 30:12
1 Samuel 30:12
12 And they gave him a piece of a cake of figs, and two clusters of raisins: and when he had eaten, his spirit came again to him: for he had eaten no bread, nor drunk any water, three days and three nights.