2 Thessalonians 2:15

Therefore, brethren. The Thessalonians had been discouraged by the misleading teachings concerning Christ’s immediate return. Paul’s instruction was specifically designed to encourage them. For the apostle’s frequent use of “brethren” see on 1 Thessalonians 1:4.

Stand fast. Greek steko (see on Philippians 1:27). A correct understanding of the “blessed hope” is a great incentive to steadfastness of character (see on Titus 2:12, 13). Misunderstanding leads to agitation and possibly fanaticism (see on 2 Thessalonians 2:2).

Hold. Greek krateo, “to hold fast,” “to keep carefully” (cf. Mark 7:8; Hebrews 4:14; Revelation 3:11).

Traditions. Greek paradoseis (see on Mark 7:3). The word means things delivered, handed over, or transmitted by way of teaching or doctrine. The prominent idea of the word is one of authority above that of the teacher; therefore, here it refers to inspired messages received by Paul and his companions and faithfully passed on to the Thessalonians.

By word, or our epistle. The adjective “our” applies to “word” as well as to “epistle.” Compare on v. 2. By these phrases Paul covers all sources of acceptable teaching. His phraseology also places these two forms of instruction on the same footing, as regards inspiration.