Ephesians 3:18

3:18 you may be able to comprehend with all the saints what is the breadth and length and height and depth, ¹ 

Ephesians 6:4-5

6:4 Fathers, ²  do not provoke your children to anger, ³  but raise them up in the discipline and instruction of the Lord.

6:5 Slaves, ⁴  obey your human masters ⁵  with fear and trembling, in the sincerity of your heart as to Christ,

[3:18]  ¹ sn The object of these dimensions is not stated in the text. Interpreters have suggested a variety of referents for this unstated object, including the cross of Christ, the heavenly Jerusalem (which is then sometimes linked to the Church), God’s power, the fullness of salvation given in Christ, the Wisdom of God, and the love of Christ. Of these interpretations, the last two are the most plausible. Associations from Wisdom literature favor the Wisdom of God, but the immediate context favors the love of Christ. For detailed discussion of these interpretive options, see A. T. Lincoln, Ephesians (WBC), 207-13, who ultimately favors the love of Christ.

[6:4]  ² tn Or perhaps “Parents” (so TEV, CEV). The plural οἱ πατέρες (Joi patere", “fathers”) can be used to refer to both the male and female parent (BDAG 786 s.v. πατήρ 1.b).

[6:4]  ³ tn Or “do not make your children angry.” BDAG 780 s.v. παροργίζω states “make angry.” The Greek verb in Col 3:21 is a different one with a slightly different nuance.

[6:5]  ³ tn Traditionally, “Servants” (KJV). Though δοῦλος (doulos) is often translated “servant,” the word does not bear the connotation of a free individual serving another. BDAG notes that “‘servant’ for ‘slave’ is largely confined to Biblical transl. and early American times…in normal usage at the present time the two words are carefully distinguished” (BDAG 260 s.v.). The most accurate translation is “bondservant” (sometimes found in the ASV for δοῦλος), in that it often indicates one who sells himself into slavery to another. But as this is archaic, few today understand its force.

[6:5]  ⁴ tn Grk “the masters according to the flesh.” In the translation above, the article τοῖς (tois) governing κυρίοις (kuriois) is rendered in English as a possessive pronoun (i.e., “your”) and the prepositional phrase κατὰ σάρκα (kata sarka) is taken as modifying κυρίοις (indicating that the author is referring to human masters) and not modifying the imperative ὑπακούετε (Jupakouete, which would indicate that obedience was according to a human standard or limitation).