Ephesians 2:11

Ye, saith he, who were thus called by the Jews. But why when he is about to show that the benefit bestowed upon them consisted in this, in having fellowship with Israel, does he disparage the Israelitish prerogative? He does not disparage it. In essential points he enhances it, but only in these points, in which they had no fellowship, he disparages it. For further on he says, "Ye are fellow-citizens of the saints and of the household of God." Mark, how far he is from disparaging it. These points, saith he, are indifferent. Never think, saith he, that because ye happen not to be circumcised, and are now in uncircumcision, that there is any difference in this. No, the real trouble was this, the being "without Christ," the being "aliens from the commonwealth of Israel." Whereas this circumcision is not "the commonwealth." Again, the being strangers from the covenants of promise, the having no hope to come, the being without God in this world, all these were parts of their condition. He was speaking of heavenly things; he speaks also of those which are upon earth; since the Jews had a great opinion of these. Thus also Christ in comforting His disciples, after saying, "Blessed are they that have been persecuted for righteousness' sake, for theirs is the kingdom of heaven," adds the lesser point of consolation, "for so," saith He, "persecuted they the prophets which were before you." For this, compared with the greatness of the other, is far less, yet in regard to the being nigh, and believing, it is great and sufficient, and has much force. This then was the sharing in the commonwealth. His word is not, "separated," but "alienated from the commonwealth." His word is not, "ye took no interest in," but, "ye had not so much as any part in, and were strangers." The expressions are most emphatic, and indicate the separation to be very wide. […]

Having said that He saved them who were dead, he now intends to show to whom He made them equal and co-heirs, namely to the Israelites — for great indeed was their dignity — and he says: "therefore remember." "Therefore" (for this reason). Why then? …

Once he has outlined God's blessing to the Gentiles in freeing them from sin (2:1), the Apostle recalls the favor shown them in their liberation from the state of paganism. Concerning this he does two things: First, he recounts the condition of their former state. …

Who were accordingly called the uncircumcision - By way of reproach. By that which is called the circumcision - By those who call themselves the circumcised, and think this a proof that they are the people of God; and who indeed have that outward circumcision which is performed by hands in the flesh.

Wherefore remember, that ye be in time past Gentiles in the flesh,....

As if he had said, "You should remember what you have been, and compare it with what you now are, in order to humble yourselves and to excite your love and thankfulness to God." Note, Converted sinners ought frequently to reflect upon the sinfulness and misery of the state they were in by nature.

The Greek order in the oldest manuscripts is, "That in time past (literally, once) ye," &c. Such remembrance sharpens gratitude and strengthens faith (Eph 2:19) [BENGEL].

Wherefore remember - That ye may ever see and feel your obligations to live a pure and holy life, and be unfeignedly thankful to God for your salvation, remember that ye were once heathens in the flesh - without the pure doctrine, and under the influence of your corrupt nature; such as by the Jew’s (who gloried, in consequence of their circumcision, to be in covenant with God) were called uncircumcision; i.e. persons out of the Divine covenant, and having no right or title to any blessing of God.

Wherefore remember - The design of this evidently is, to excite a sense of gratitude in their bosoms for that mercy which had called them from the errors and sins of their former lives, to the privileges of Christians. It is a good thing for Christians to “remember” what they were. No faculty of the mind can be better employed to produce humility, penitence, gratitude, and love, than the memory.