Hebrews 6:11-13 New International Version - UK (NIVUK)
11 We want each of you to show this same diligence to the very end, so that what you hope for may be fully realized. 12 We do not want you to become lazy, but to imitate those who through faith and patience inherit what has been promised.
The certainty of God’s promise
13 When God made his promise to Abraham, since there was no one greater for him to swear by, he swore by himself,