Lift up an afflicted brother

Is to fulfill the mandate of God the Father

"You who fear the Lord, praise him! All you offspring of Jacob, glorify him; stand in awe of him, all you offspring of Israel! For he did not despise or abhor the affliction of the afflicted; he did not hide his face from me, but heard when I cried to him. From you comes my praise in the great congregation; my vows I will pay before those who fear him. …