Weak in the flesh, unwilling to serve, ready to betray, and about to be scattered. This is the miserable spiritual condition of God’s people. Jeremiah is nearly put to death for preaching the Word. Jesus’ disciples insist they would die for him, but cannot stay awake to pray, and are nowhere to be found when he is condemned for blasphemy. And it is true of us, too. The spirit is willing, but the weak flesh nods away in drowsy distraction. It lives in fear, hiding away what God has given to it, and fleeing when confronted by the powers of this world. It seeks its own good and does not serve the Lord. So, our sin drives us into exile.
But, though he is angry, our Lord does not put an end to us. The promise to his people remains: we will one day come home. This is not a vague hope; it is made a certainty in Jesus Christ, whose condemnation brings about our salvation, turning our hearts away from evil and back to him.
And now we know. The constant struggle against temptation and the flesh will end. There will be no more betrayal, injustice, weakness, or oppression. God will live with his people in perfection, and his kingdom will not end.That day is closer than ever, but until then, we can hear the echoes of it in his Word, spoken by prophets. We can touch and taste it in his Sacrament. We can see it in the good work his Spirit brings about in his church. With this assurance, we are made worthy servants in Jesus, going confidently forward in his work until that day comes.