And they of Ephraim shall be like a mighty man, and their heart shall rejoice as through wine: yea, their children shall see it, and be glad; their heart shall rejoice in the LORD.
And they of Ephraim shall be like a mighty man - in the battle with the foe (Zechariah 10:3; Zechariah 10:5).
And their heart shall rejoice - at their victory over the foe.
Yea, their children shall see it, and be glad - who are not yet of age to serve. To teach patient waiting for God's promises. If ye do not at present see the fulfillment, your children shall, and their joy shall be complete.
Their heart shall rejoice in the Lord - the Giver of such a glorious victory.