John Trapp on Isaiah 65:18

Ver. 18. But be glad and rejoyce for ever] what can ye be leſs then everlaſtingly merry when you conſider your Goſpel-priviledges? which are ſuch as may well ſwallow up all diſcontents, and make you more then Conquerours, and that is, Triumphers.

For behold I create Jeruſalem a rejoycing] Creo talem Jeruſalem ut ſit ei nomen Tripudium, & populus ejus vocetur Gaudium. Oecol. Hence it appeareth that theſe things are not to be taken according to the letter: but of Jeruſalem which is above, that mother of us all.