As we come to the end of the Trinity season, our attention shifts to the Lord's promise to return on the Last Day. That will will be a day of both judgment and mercy. Jesus tells us that He is coming again and that this sinful world will be destroyed, and that He will create a new heavens and earth. On that day, believers and unbelievers will be separated. Believers will receive the kingdom  (Heaven) which Jesus has won for them by His death, but unbelievers will receive what all sinners deserve - eternal judgment in hell. 

For this reason our God tells us to be ready for that day. James writes: "You also be patient. Establish your hearts, for the coming of the Lord is at hand. Do not grumble against one another, brethren, lest you be condemned. Behold, the Judge is standing at the door!" (James 5:8-9)

Knowing that we have an eternal kingdom, we are to live our lives in faith and godliness: "For the grace of God that brings salvation has appeared to all men, teaching us that, denying ungodliness and worldly lusts, we should live soberly, righteously, and godly in the present age, looking for the blessed hope and glorious appearing of our great God and Savior Jesus Christ, who gave Himself for us, that He might redeem us from every lawless deed and purify for Himself His own special people, zealous for good works." (Titus 2:11-14)

This hymn is a beautiful poetic description of the glory of heaven, and a reminder of the evil world the LORD desires to deliver us from. It also serves as a reminder to be faithful and sober as we await and prepare for His return.

Verse 4 is a wonderful summary of the hymn in its entirety:

Join us as we are reminded of the the Lord's promise to return to deliver us from this evil world through His work on the cross and as we encourage one another to strive, in our Christian lives, to enter His glory! May it be so, by God's grace, for each of us!