NET
26 However, Saul said nothing about it that day, for he thought, “Something has happened to make him ceremonially unclean. Yes, he must be unclean.”
Darby
26 And Saul said nothing that day; for he thought, Something has befallen [him], that he is not clean: surely he is not clean.
KJV
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.