This sermon explores the question of true affiliation with Jesus—how do you know you are truly grafted into Christ? Using Gospel encounters and the Abraham/Isaac story, the preacher shows that purity, ethnicity, or church membership do not determine belonging.

Instead, hearing and clinging to Christ in need, trusting His work and word, is the decisive mark of being on Jesus’ team. As Holy Week approaches, the message calls listeners to rely on Christ’s obedience and sacrificial righteousness, receive his gifts in Word and sacrament, and live as those already grafted into the vine.