What do you think your heart needs most? Comfort, strength, hope or peace? You can revisit the quotes and choose one from the section you prefer. Or if your focus is on remembering him, I recommend that you choose from the following two:
(1) We remember before our God and Father your work produced by faith, your labor prompted by love, and your endurance inspired by hope in our Lord Jesus Christ (1 Thessalonians 1:3 NIV).
(2) Remember that the Lord will reward each one of us for the good we do (Ephesians 6:8).
The death of a child is among the greatest force of stress, but God can comfort the most stressful soul. I pray that you experience His peace.