“Though heaven be given us freely, yet we must contend for it”
The Christian Soldier; or Heaven Taken by Storm http://www.fivesolas.com/watson/soldie_i.htm (1669). <br class="br">Context: Though heaven be given us freely, yet we must contend for it, "Whatsoever thy hand findeth to do, do it with thy might" (Eccl. 9:10)