They spoke the word only to the Jews. This is taken from Acts 11:19.
The Jews in general did not accept the good news, and calamity was to befall them, for Jesus had warned his disciples: “When you see Jerusalem surrounded by encamped armies, then know that the desolating of her has drawn near. Then let those in Judea begin fleeing to the mountains, let those in the midst of her leave, and let those in the countryside not enter into her.” (Luke 21:20, 21) What Jesus foretold took place. Because of a Jewish revolt, Roman armies led by Cestius Gallus surrounded Jerusalem in 66 C.E. Those forces suddenly withdrew, however, and that historian Eusebius, many fled across the Jordan River to Pella in Perea. In 70 C.E., Roman armies under General Titus returned and devastated Jerusalem. However, faithful Christians survived because they heeded Jesus’ Warning.