Philippians 4:3; Revelation 3:5

Philippians 4:3

3 Yes, and I ask you, my true companion, help these women since they have contended at my side in the cause of the gospel, along with Clement and the rest of my co-workers, whose names are in the book of life.

Revelation 3:5

5 The one who is victorious will, like them, be dressed in white. I will never blot out the name of that person from the book of life, but will acknowledge that name before my Father and his angels.