God cursed the ground, because of Adam’s sin, so the financial curse came to man. But Jesus took the curse of the Law which is poverty for us, on the cross, and gave us his blessing. He took our curse, and gave us his blessing. Jesus came to preach the Gospel first to the poor!
Ephesians 1:3 is talking about spiritual blessings. That means, that all the material or spiritual blessings which we have from God, are divine in their origin, and come from the spiritual realm, before they manifest in the physical realm.