The ark of the covenant was a chest which lived in the innermost part of the tabernacle and later in the same part of the temple, into which none could enter except the high priest once a year on the Day of Atonement. It represented the presence of God with the children of Israel in their wanderings.
The temple of God is in heaven, not on earth as expected by those who look for a literal thousand-year millennium and a return of Christ to earth at the start of that period. The Premillennial understanding of chapters 4 to 19 is that they cover the period of the last seven years before the thousand-year reign of Christ on earth. This seven-years they see as the seventieth week of Daniel’s prophecy. According to their scheme, the temple will be built by the Jews during this seven-year period, for ‘the renewal of their ancient sacrifices’. Are there then two temples of God, one on earth and another in heaven? During the Old Testament age of types and shadows, this was certainly the case, for at that time the priests served ‘the example and shadow of heavenly things, as Moses was admonished of God when he was about to make the tabernacle: for, See, saith he, that thou make all things according to the pattern shewed to thee in the mount’ (Hebrews 8:5). Now, however, ‘We have such an high priest, who is set on the right hand of the throne of the Majesty in the heavens; 2 A minister of the sanctuary, and of the true tabernacle, which the Lord pitched, and not man’ (Hebrews 8:1-2). Our High Priest is in heaven and he serves in the heavenly temple. This is the true tabernacle or temple, which is not made with bricks and mortar by the hands of men, but built by God. When John sees the temple of God in heaven at a time when our High Priest ministers in heaven, there cannot be another temple on earth.