Matt 1:21 21 And she shall bring forth a son, and thou shalt call his name Jesus: for he shall save his people from their sins. It could not be stated any clearer or plainer in this verse informing us whom Christ came to and shall save from their sins , by His Redeeming and Saving Death, its the World of His People ! Realize His People are particulars and the word world means , the greek word kosmos : VIII.any aggregate or general collection of particulars of any sort The word aggregate means: formed by the conjunction or collection of particulars into a whole mass or sum; total; combined: assemblage of particulars A assemblage : a number of things or persons assembled together; collection; assembly Now what is Christ's Church ? Its the word ekklēsia and means: I. a gathering of citizens called out from their homes into some public place, an assembly A. an assembly of the people convened at the public place of the council for the purpose of deliberating B. the assembly of the Israelites C. any gathering or throng of men assembled by chance, tumultuously D. in a Christian sense i. an assembly of Christians gathered for worship in a religious meeting ii. a company of Christian, or of those who, hoping for eternal salvation through Jesus Christ, observe their own religious rites, hold their own religious meetings, and manage their own affairs, according to regulations prescribed for the body for order's sake iii. those who anywhere, in a city, village, constitute such a company and are united into one body iv. the whole body of Christians scattered throughout the earth v. the assembly of faithful Christians already dead and received into heaven This enlightens us on How the Church is the World that Christ Loved Eph 5:25 25 Husbands, love your wives, even as Christ also loved the church, and gave himself for it; Understand, the Church is the World of His People Matt 1:21 that He shall save from their sins. Now, His People in Matt 1:21, are they ethnic jews ? Absolutely NOT ! His People are clearly defined here as those He foreknew Rom 11:2 2 God hath not cast away his people which he foreknew. Wot ye not what the scripture saith of Elias? how he maketh intercession to God against Israel saying, Thats an clarification of who His People are that we would be wise not to overlook ! Now this word foreknow is the greek proginōskō made up of Two Gk words , the prep pro meaning: I.before, and the greek word ginōskō and means: Its an knowing of intimacy and affection as it is when He says He knows His Sheep Jn 10:14 14 I am the good shepherd, and know my sheep, and am known of mine. Loved them because He laid down His Life for them Jn 10:15 15 As the Father knoweth me, even so know I the Father: and I lay down my life for the sheep. In its simplest definition foreknow means to know beforehand !