Hebrews 6:11-13

And we desire for each one of you to show the same diligence [all the way through] so as to realize and enjoy the full assurance of hope until the end, so that you will not be [spiritually] sluggish, but [will instead be] imitators of those who through faith [lean on God with absolute trust and confidence in Him and in His power] and by patient endurance [even when suffering] are [now] inheriting the promises. For when God made the promise to Abraham, He swore [an oath] by Himself, since He had no one greater by whom to swear