'Unto' in the Bible

nor did I go up to Jerusalem unto those who were apostles before me, but I went away to Arabia, and again returned to Damascus,

and now, having known God -- and rather being known by God -- how turn ye again unto the weak and poor elements to which anew ye desire to be in servitude?

therefore, then, as we have opportunity, may we work the good to all, and especially unto those of the household of the faith.