prevail against = overpower. Hebrew. takaph, supposed to belong to later Hebrew, but it is found in Job_14:20 with Job_15:24 (the only three occurrences). See App-76.
a threefold cord. Compare Num_6:24-26. Mic_6:8. Tit_2:12, Tit_2:13; 1Th_1:3 with 1Th_1:9, 1Th_1:10.