Refrain from (
aposthte apo). Second aorist (ingressive) active imperative of
apisthmi of verse
Acts 37 . Do ye stand off from these men. "Hands off" was the policy of Gamaliel.
For if--be (
oti ean--h).
Hoti gives the reason for the advice. Gamaliel presents two alternatives in terms of two conditional clauses. The first one is stated as a condition of the third class,
ean with the present subjunctive
h, undetermined with prospect of determination. Assuming that it is from men, "it will be overthrown" (
kataluqhsetai, first future passive of
kataluw, to loosen down like a falling house) as was true of the following of Theudas and Judas the Galilean.