(1.) Upon what terms they shall be welcome. Let them know that God's Israel, when they come out of Babylon, will not be plagued, as they were when they came out of Egypt, with a mixed multitude, that went with them, but were not cordially for them; no, the sons of the strangers shall have a place and a name in God's house provided, [1.] That they forsake other gods, all rivals and pretenders whatsoever, and join themselves to the Lord, so as to become one spirit, 1 Cor. vi. 17. [2.] That they join themselves to him as subjects to their prince and soldiers to their general, by an oath of fidelity and obedience, to serve him, not occasionally, as one would serve a turn, but to be constantly his servants, entirely subject to his command, and devoted to his interest. [3.] That they join themselves to him as friends to his honour and the interests of his kingdom in the world, to love the name of the Lord, to be well pleased with all the discoveries he has made of himself and all the memorials they make of him. Observe, Serving him and loving him go together; for those that love him truly will serve him faithfully, and that obedience is most acceptable to him, as well as most pleasant to us, which flows from a principle of love, for then his commandments are not grievous, 1 John v. 3. [4.] That they keep the sabbath from polluting it; for the stranger that is within thy gates is particularly required to do that. [5.] That they take hold of the covenant, that is, that they come under the bonds of it, and put in for the benefits of it.