All the ends of the world shall remember and turn unto the LORD: and all the kindreds of the nations shall worship before thee.
All ... shall remember, and turn unto the Lord. He passes to the conversion of all the Gentile nations, consequent on the conversion of all Israel. They shall then "remember" Him whom they have so long forgotten by apostasy, and shall turn to Him. The first step to repentance is that the sinner should recall to memory and ponder upon, his heavenly Father's love, and his own wicked folly. So the prodigal in Luke 15:17 (cf. Psalms 119:59; Ezekiel 16:61-63). 'The salvation of the Lord is so great, that it awakens the whole, pagan world out of its stupid insensibility' (Hengstenberg). It is not merely the deliverance vouchsafed to the holy sufferer, but also the salvation vouchsafed to the world through Him, which shall rouse the nations to "remember" God (Zechariah 12:10). The word "remember" does not imply knowledge of Messiah before, but their being brought by the Spirit's testifying of Christ to their hearts, to return to that God from whom their forefathers apostatized.
All kindreds - referring to the original promise to Abraham (Genesis 12:3; Genesis 28:14).