Today's Reading: Isaiah 55:1-13
Incline your ear, and come to Me. Hear, and your soul shall live; And I will make an everlasting covenant with you--The sure mercies of David. (Isaiah 55:3)
In the Name + of Jesus. Amen. What's a covenant? In the Ancient Near East (Old Testament times) it was an agreement between a king and someone else. One person made a promise to do something and the king in return promised to do something. But, like we've been hearing in this Pre-Lent season, God doesn't do things the way we do. When the Lord makes a covenant, it's all His goodness promising to do something for us.
Through the prophet Isaiah, Yahweh makes a promise--an everlasting promise. The sure mercies of David. What are the "sure mercies of David?" It's the promise that God forgave David all His sins. That's a promise made in view of the Savior who would come. To put it another way: the "sure mercies of David" is Jesus.
Jesus, of course, is a descendant of David. But He's also the One through whom David's mercy comes. He is the One through whom your mercy comes. In His death and resurrection, God is merciful to all sinners, taking away their sins by the sacrifice of the Lamb of God. Then Jesus is raised from the dead to show that God is not fooling around when it comes to sins. He has forgiven them forever.
That's why it's an everlasting covenant on God's part. Baptism, Absolution, Sermon, and Supper all declare: God has made this promise to you and He can't take it back. He can't undo it. He can't go back on His Word. Your sins have been forgiven. Fully. Completely. Forever. That's the sure mercies of David. Those are your sure mercies--the sure mercies of Jesus for you. In the Name of Jesus. Amen.
From God can nothing move me; He will not step aside But gently will reprove me And be my constant guide. He stretches out His hand In evening and in morning, My life with grace adorning Wherever I may stand. (From God Can Nothing Move Me, LSB 713:1)