2 Surely you have heard about the administration of God’s grace that was given to me for you,

Read Ephesians 3:2 Using Other Translations

If ye have heard of the dispensation of the grace of God which is given me to you-ward:
assuming that you have heard of the stewardship of God's grace that was given to me for you,
assuming, by the way, that you know God gave me the special responsibility of extending his grace to you Gentiles.