Why does it read therefore "but now commandeth all men every where to repent" ?
Because Gospel preaching and repentance is under the auspices of the Abrahamic Covenant, regarding Gods Promise to Abraham Gen 12:3
3 [FONT="]And I will bless them that bless thee, and curse him that curseth thee: and in thee shall all families of the earth be blessed.
Gal 3:8
[/FONT][/COLOR][COLOR=#000000][FONT=Arial][B]8 [/B][/FONT][/COLOR][COLOR=#000000][FONT="]And the scripture, foreseeing that God would justify the heathen through faith, preached before the gospel unto Abraham, saying, In thee shall all nations be blessed.
Giving the Gentiles Faith and Repentance is the fulfillment of Gods promise[/FONT]