Colossians 1:16-20
For by him were all things created, that are in heaven, and that are in earth, visible and invisible, whether they be thrones, or dominions, or principalities, or powers: all things were created by him, and for him: And he is before all things, and by him all things consist. And he is the head of the body, the church: who is the beginning, the firstborn from the dead; that in all things he might have the preeminence. For it pleased the Father that in him should all fulness dwell; And, having made peace through the blood of his cross, by him to reconcile all things unto himself; by him, I say, whether they be things in earth, or things in heaven.
In my experience with discussions and debates on UR, when this scripture comes up, here is what the ETer might say: When verse 20 says "reconcile all things unto himself" it says that about the church, not all people. The justification for that is how verse 20 follows "and he is the head of the body, the church." Therefore, they say, that the reconciliation "of all" applies to the narrowed focus of the church.
Here is what I say:
1. Compare verse 20 with 16. Verse 16: "For by him were all things created, that are in heaven, and that are in earth, visible and invisible, whether they be thrones, or dominions, or principalities, or powers: all things were created by him, and for him" compare to verse 20: "And, having made peace through the blood of his cross, by him to reconcile all things unto himself; by him, I say, whether they be things in earth, or things in heaven." Paul starts big, then narrows to the church. Then expands the focus again leading up to "reconcile all things" whether "things in heaven and in earth." As he created all things, he also reconciled all things both in heaven and in the earth. According to Colossians: Which things in the earth did he not create? Which things in the earth did he not reconcile?
Do you see what I mean? Verse 16 is the parallel of 20.
2. Note this phrase: "that in all things he might have the preeminence." Here is where Paul expands the focus after his statement about the church, before making his statement about how it pleases him that in Him "all fullness dwell." Paul makes the statement about how God through Christ created all things in heaven and in the earth. Then he narrows his focus to the church. Then he says "that in all thing he might have the preeminence." ETers who force their doctrine into this incompatible scripture need to ask themselves "in which things does Christ NOT have the preeminence." It's pretty clear that Christ has the "name above ALL names" right? So the preeminence is that in all things he is preeminent, it makes further logical sense to say that the "all fullness" dwelling is the same "all in all" from 1 Cor 15, where Jesus delivers the kingdom to God to be such.
First comes the reconciliation of all through his death. Then comes the salvation of all through his life, as the scripture says. First the peace is made with all (though not all have made peace with him in their minds and are not reconciled to him in their minds) THEN the fullness of all in all to follow.