Albert Barnes Commentary Isaiah 54:13

"And all thy children shall be taught of Jehovah; and great shall be the peace of thy children." — Isaiah 54:13 (ASV)

And all your children - All that dwell in this splendid city; all that are the true friends of the Redeemer. It shall be a part of their future glory that they shall be all under divine instruction and guidance. See Jeremiah 31:34 - And they shall teach no more every man his neighbor, and every man his brother, saying, Know the Lord, for they shall all know me, from the least of them unto the greatest of them.

And great shall be the peace of your children - (See the notes at Isaiah 2:4; Isaiah 9:6).