Isaiah 41:10

Moreover, the Israelites did not need to fear because God was with them, and He had committed Himself to them (cf. Matthew 28:20). They need not look one way and then another trying to find safety (cf. Isaiah 41:5-6). Furthermore their God promised to help them in every way with His powerful right hand, a symbol of strength, and to do what was right (cf. Isaiah 40:10-11).

"Even though no exiled nation had ever before in history been brought back to start life anew in their ancestral homeland, and even though the Gentile government would have no practical means of inducing the Jews to return home, nevertheless God would bring this seeming impossibility to pass." [Note: Archer, pp. 637-38.]