John Calvin Commentary Zechariah 10:12

"And I will strengthen them in Jehovah; and they shall walk up and down in his name, saith Jehovah." — Zechariah 10:12 (ASV)

Here, at last, he includes the substance of what we have observed: that there would be enough help in God to raise up and support His people, and to make them victorious over all their enemies. He had already proved this by stating that God had previously testified sufficiently through many miracles how much superior He was to the whole world. But he briefly completes this entire proof and shows that the Jews, provided they relied on God and expected from Him what He had promised, would be sufficiently strong, even if the whole power of the world were to rise up against them.

He also mentions the name of God: They shall walk, he says, in His name, that is, under His guidance. In short, there is an implied contrast here between the name of God and the wealth and forces of their enemies, which might have filled the minds of the faithful with fear and discouraged them. Therefore, the Prophet urges the Jews to give glory to God and not to doubt that they would be victorious, whatever obstacles the world might place in their path. By this word 'walk,' he means a continuous course of life, as if he had said that the people had indeed returned from exile (that is, in part), but that more of them were to be expected. For the Lord had not only been a leader in their return, but He would also be their perpetual guardian and defend them to the end.

Prayer:

Grant, Almighty God, that as we are continually constrained to groan under the burden of our sins, and as the captivity in which we are justly held exposes us to continual trembling and sorrow—O grant that the deliverance already begun may inspire us with hope, so that we expect more from You than what we can see with our eyes; and may we continually call on You until You complete what You have begun and put to flight both Satan and our sins, so that, being in true and full liberty devoted to You, we may be partakers of that power which has already appeared in our Head, until, having at last passed through all our struggles, we may reach that blessed rest where we shall enjoy the fruit of our victory in Christ our Lord. Amen.