Revelation 21:22

And I saw no temple therein
No material temple, as was in the old Jerusalem, or such as is described in Ezekiel's vision; nor any place of public worship, as under the Gospel dispensation; for in this state there will be no such external form of worship as now, such as preaching the word and administering ordinances. The Jews expect a third temple, but in vain.

For the Lord God Almighty, and the Lamb, are the temple of it;
God will be immediately present with his people, whose face they shall see, and whom they will serve in the most pure and spiritual manner; and Christ in his human nature, in the temple of his body, that tabernacle which God pitched, and not man, which is filled with the train of the divine perfections, and in which the fulness of the Godhead dwells bodily, will be the only medium of the divine Presence, and of the communications of glory to men, and of the saints' praise to God, which will be the service they will be employed in; and the Lamb being joined with the Lord God Almighty, shows his deity and his equality with his Father.