אִֽם־יִשְׁמְר֬וּ בָנֶ֨יךָ ׀ בְּרִיתִי֮ וְעֵדֹתִ֥י ז֗וֹ אֲלַ֫מְּדֵ֥ם גַּם־בְּנֵיהֶ֥ם עֲדֵי־עַ֑ד יֵ֝שְׁב֗וּ לְכִסֵּא־לָֽךְ׃
If thy children keep My covenant And My testimony that I shall teach them, Their children also for ever shall sit upon thy throne.'
Read kabbalistic (mystical) interpretation of Psalms 132:12: and classical mystical sources.