Abraham, the just and upright man (Ps), graciously hosts three visitors (1). As Mary and Martha host Jesus, he speaks o only one thing as necessary (3) for us who follow him: being open to receive the message and person of Jesus and being receptive to the "mystery of Christ" (2) as he comes to us through one another. Gn 18:1-10a; Ps 15:2-5; Col 1:24-28; Lk 10:38-42