A.T. Robertson Commentary Romans 16:20

"And the God of peace shall bruise Satan under your feet shortly. The grace of our Lord Jesus Christ be with you." — Romans 16:20 (ASV)

Shall bruise (συντριψε). Future active of συντριβω, old verb, to rub together, to crush, to trample underfoot. Blessed promise of final victory over Satan by "the God of peace." "Shortly" (εν ταχε). As God counts time. Meanwhile patient loyalty from us.