Efesus 4:3

4:3 making every effort to keep the unity of the Spirit in the bond of peace.

Efesus 4:5

4:5 one Lord, one faith, one baptism,

Efesus 4:13

4:13 until we all attain to the unity of the faith and of the knowledge of the Son of God – a mature person, attaining to ¹  the measure of Christ’s full stature. ² 

Efesus 4:15

4:15 But practicing the truth in love, ³  we will in all things grow up into Christ, who is the head.

[4:13]  ¹ tn The words “attaining to” were supplied in the translation to pick up the καταντήσωμεν (katanthswmen) mentioned earlier in the sentence and the εἰς (eis) which heads up this clause.

[4:13]  ² tn Grk “the measure of the stature of the fullness of Christ.” On this translation of ἡλικία (Jhlikia, “stature”) see BDAG 436 s.v. 3.

[4:15]  ³ 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.