In that day also he shall come even to thee from {l} Assyria, and from the fortified cities, and from the fortress even to the river, and from sea to sea, and from mountain to mountain.

(l) When the Church will be restored, those that were enemies before will come out of all the corners of the world to her, so that neither fortresses, rivers, seas, nor mountains will be able to stop them.

Wesley's Notes

7:12 In that day - After the return out of captivity. He - He who is of Jewish race. To thee - O Jerusalem. The fortified cities - In which many Jews were kept for servile works. To the river - To Euphrates. To sea - From the Caspian to the Persian and to the Midland sea. From mountain - That is, from all parts of their captivity, they shall return to their own country.

King James Translators' Notes

and [from] the fortified cities: or, even to the fortified cities

Jamieson-Fausset-Brown Bible Commentary

12. In that day also-rather, an answer to the supposed question of Zion, When shall my walls be built? "The day (of thy walls being built) is the day when he (that is, many) shall come to thee from Assyria," &c. [Ludovicus De Dieu]. The Assyrians (including the Babylonians) who spoiled thee shall come.

and from the fortified cities-rather, to suit the parallelism, "from Assyria even to Egypt." (Matzor may be so translated). So Assyria and Egypt are contrasted in Isa 19:23 [Maurer]. Calvin agrees with English Version, "from all fortified cities."

from the fortress even to the river-"from Egypt even to the river" Euphrates (answering in parallelism to "Assyria") [Maurer]. Compare Isa 11:15, 16; 19:23-25; 27:13; Ho 11:11; Zec 10:10.

Matthew Henry's Concise Commentary

7:8-13 Those truly penitent for sin, will see great reason to be patient under affliction. When we complain to the Lord of the badness of the times, we ought to complain against ourselves for the badness of our hearts. We must depend upon God to work deliverance for us in due time. We must not only look to him, but look for him. In our greatest distresses, we shall see no reason to despair of salvation, if by faith we look to the Lord as the God of our salvation. Though enemies triumph and insult, they shall be silenced and put to shame. Though Zion's walls may long be in ruins, there will come a day when they shall be repaired. Israel shall come from all the remote parts, not turning back for discouragements. Though our enemies may seem to prevail against us, and to rejoice over us, we should not despond. Though cast down, we are not destroyed; we may join hope in God's mercy, with submission to his correction. No hinderances can prevent the favours the Lord intends for his church.