And I will make of you a great nation, and I will bless you, and make your name great; and you shall be a blessing -Genesis 12:2
The object of God, in choosing a people before all worlds, was not only to save that people, but through them to confer essential benefits upon the whole human race. When He chose Abraham, He did not elect Him simply to be God’s friend, and the recipient of peculiar privileges; but He chose Him to make Him, as it were, the conservator of truth. He was to be the ark in which the truth should be hidden. He was to be the keeper of the covenant in behalf of the whole world; and when God chooses any men by His sovereign, electing grace, and makes them Christ’s, He does it not only for their own sake, that they may be saved, but for the world’s sake. For, know ye not that “ye are the light of the world;”-“A city set upon a hill, which cannot be hid?” “Ye are the salt of the earth;” and when God makes you salt, it is not only that ye may have salt in yourselves, but that like salt ye may preserve the whole mass. If He makes you leaven, it is that, like the little leaven, you may leaven the whole lump. Salvation is not a selfish thing; God does not give it for us to keep to ourselves, but that we may thereby be made the means of blessing to others; and the great day shall declare that there is not a man living on the surface of the earth but has received a blessing in some way or other through God’s gift of the gospel. The very keeping of the wicked in life, and granting of the reprieve, was purchased with the death of Jesus; and through His sufferings and death, the temporal blessings which both we and they enjoy are bestowed on us. The gospel was sent that it might first bless those that embrace it, and then expand, so as to make them a blessing to the whole human race.
In thus speaking of the church as a blessing, we shall notice three things. First, here is divinity-“I will make them a blessing;” secondly, here is personality of religion-“I will make them a blessing;” and thirdly, here is the development of religion“-“and the places round about my hill.” ~ C.H. Spurgeon