Something — Some accident which has rendered him unclean, and so unfit to partake of this feast, which consisted in part of the remainders of the peace — offerings, according to the law, Leviticus 7:20. Unfit also to come into any company, much more, into the king's company, lest he should pollute them also.
Related Commentaries of 1 Samuel 20:26
1 Samuel 20:26
26 Nevertheless Saul spake not any thing that day: for he thought, Something hath befallen him, he is not clean; surely he is not clean.