Must (dei). Present necessity corresponding to the old necessity (edei) about Judas (verse 1 Timothy 16 ). This sentence in verses 1 Timothy 21 22 begins with dei. That (wi). Locative case of the relative attracted to the case of the antecedent. Went in and went out (eishlqen kai exhlqen). Constative aorist active. With us (ep hma). Over us, the margin has it. But the full phrase would be ep hma kai ap hmwn. He came to us and went from us (Knowling).