Philippians 2:16

holding fast to the word of life , so that in the day of Christ I may be proud that I did not run in vain or labor in vain .

as you hold firmly to the word of life. And then I will be able to boast on the day of Christ that I did not run or labor in vain.

Holding forth the word of life; that I may rejoice in the day of Christ, that I have not run in vain, neither laboured in vain.