John Gill Commentary John 4:21

"Jesus saith unto her, Woman, believe me, the hour cometh, when neither in this mountain, nor in Jerusalem, shall ye worship the Father." — John 4:21 (ASV)

Jesus says to her, woman, believe me
In what I am now going to say, since you own me to be a prophet:

the hour is coming;
the time is at hand; it is very near; it is just coming:

when you shall neither in this mountain, nor yet at Jerusalem,
worship the Father;
that is, God, whom the Jews, and so the Samaritans, knew under the character of the Father of all men, as the Creator and preserver of them; for not God as the Father of Christ, or of the saints by adopting grace, is here intended, which this ignorant woman at least had no knowledge of: and the reason of our Lord's speaking after this manner, signifying, that she need not trouble herself about the place of worship, was, partly, because in a little time Jerusalem, and the temple in it, would be destroyed, and not one stone left upon another; and that Samaria, and this mountain of Gerizim, with whatsoever edifice might be upon it, would be laid desolate, so that neither of them would continue long to be places of religious worship; and partly, because all distinction of places in religion would entirely cease; and one place would be as lawful, and as proper to worship in, as another; and men should lift up holy hands, and pray, and offer up spiritual sacrifices in every place, even from the rising of the sun, to the going down of the same, (Malachi 1:11).