ISB ~ Matthew 10 v5

nowhere among the Gentiles:Jesus sends the apostles only to the Israelites of Galilee (10:6). This reflects the order and direction of salvation history. Since God adopted them as his “own possession” (Ex 19:5) and lavished them with privileges (Rom 9:4, 5), it was appropriate that they first hear the New Covenant gospel (cf. Acts 1:8; Rom 1:16). After Jesus’ Resurrection, the apostles are sent also to the Gentiles (28:1820; Mk 16:16; CCC 543). See note on Mt 4:12.