William Burkitt on Hebrews 12:6

A reason is given in these words, why we should not faint under divine chastisements, because God chasteneth every one whom he loves.

Here note, That love is antecedent unto chastening, and that chastening is consequential unto love.

Note, 2. That divine love and fatherly chastenings are inseparable; whom he loveth, that is, whomsoever he loveth, he chasteneth, none goes free.

Note, 3. That no person then has any reason to complain of his portion of fatherly chastisements, seeing it is the constant way and manner of God's dealing with his children.

Note, 4. That in and under all our chastisements, the resignation of ourselves to the sovereign pleasure and infinite wisdom of God, is the only means to preserve us from fainting and weakness.