In the Greek New Testament and in the Greek grammar construction, there is no difference in the term “the Day of the Lord” and “the Lord’s Day.” And so, when John says that He was in the Spirit on the Lord’s Day in Revelation, one could easily understand that he was in the Spirit on the Day of the Lord. The Lord’s Day is the Day of the Lord – in one sense.
Now, there was a particular Day of the Lord when Yahweh came and brought His judgment upon unbelieving and apostate Israel especially because of her rejection of the Messiah. This was the undoing of the old created order and the destruction of the temple. There will be another Day of the Lord when the Lord Jesus Christ physically returns to this earth to judge the living and the dead at the great resurrection.
But every Lord’s Day is also a day of the Lord. It is a day when He comes and visits us in a special way –and so we gather before Him, dressed in the righteousness of His Son, for His inspection and judgment upon us. He intends to renew His vows before us and expects that we will do the same with Him.
He will clean you up here, instruct you, bind up your weak faith and strengthen your spirit with His. He will give You His Word and His Table elements – by which in faith You will partake of His Son and renew that union and communion of peace with Him which only those of us in Christ can have.
Peace with God. That is the end of the Day of the Lord; that is the purpose of the Lord’s Day. It is a Sabbath rest. It is a glorious and refreshing time. It is a terrible time for any who would come full of sin and presumption and so I urge you not to do so. But it is a life-giving time for any who would come honest about their sin and hungry for the Lord. And O, how we need His life. Well then, come and worship the Lord Jesus. Come and worship our God.