NET

21 so that your days and those of your descendants may be extended in the land that the Lord promised to give to your ancestors, like the days of heaven itself.

Darby

21 that your days may be multiplied, and the days of your children, in the land which Jehovah swore unto your fathers to give them, as the days of the heavens [which are] above the earth.

KJV

21 That your days may be multiplied, and the days of your children, in the land which the LORD sware unto your fathers to give them, as the days of heaven upon the earth.

Strong's

21 That your days^H3117 may be multiplied^H7235, and the days^H3117 of your children^H1121, in the land^H127 which the LORD^H3068 sware^H7650 unto your fathers^H1 to give^H5414 them, as the days^H3117 of heaven^H8064 upon the earth^H776.