¹ sn Heb “I swear by myself.” Oaths were guaranteed by invoking the name of a god or swearing by “his life.” See Jer 12:16; 44:26. Since the Lord is incomparably great, he could swear by no higher (see Heb 6:13-16) than to swear by himself or his own great name.

¹ tn The meaning of the participle ἀληθεύοντες (alhqeuonte"; from the verb ἀληθεύω [alhqeuw]) is debated. In classical times the verb could mean “to speak the truth,” or “to be true, to prove true.” In the LXX it appears five times (Gen 20:16; 42:16; Prov 21:3; Isa 44:26; Sir 34:4) and translates four different Hebrew words; there it is an ethical term used of proving or being true, not with the idea of speaking the truth. In the NT the only other place the verb appears is in Gal 4:16 where it means “to speak the truth.” However, in Ephesians the concept of “being truthful” is the best sense of the word. In contrast to the preceding verse, where there are three prepositional phrases to denote falsehood and deceit, the present word speaks of being real or truthful in both conduct and speech. Their deceit was not only in their words but also in their conduct. In other words, the believers’ conduct should be transparent, revealing the real state of affairs, as opposed to hiding or suppressing the truth through cunning and deceit. See H. W. Hoehner, Ephesians, 564-65, and R. Bultmann, TDNT 1:251.