World Wide Study Bible
a Bible passage
4. He is proud—literally, "wrapt in smoke"; filled with the fumes of self-conceit (1Ti 3:6) while "knowing nothing," namely, of the doctrine which is according to godliness (1Ti 6:3), though arrogating pre-eminent knowledge (1Ti 1:7).
doting about—literally, "sick about"; the opposite of "wholesome" (1Ti 6:3). Truth is not the center about which his investigations move, but mere word-strifes.
evil surmisings—as to those who are of a different party from themselves.