This root form (lemma) is used in 3 different forms in the NT: κατίσχυον (IIA3··P), κατισχύσητε (SAA2··P), κατισχύσουσιν (IFA3··P).
It is glossed in 3 different ways: ‘were prevailing’, ‘will_be prevailing’, ‘you_all may prevail’.
OET MAT 16:18 Greek word=κατισχύσουσιν (katisⱪusousin) Morphology=IFA3··P English gloss=‘will_be prevailing’ SR GNT MAT 16:18 word 26
OET LUKE 21:36 Greek word=κατισχύσητε (katisⱪusaʸte) Morphology=SAA2··P English gloss=‘you_all may prevail’ SR GNT LUKE 21:36 word 9
OET LUKE 23:23 Greek word=κατίσχυον (katisⱪuon) Morphology=IIA3··P English gloss=‘were prevailing’ SR GNT LUKE 23:23 word 13