"The ninth duty that lies upon strong saints is to cast a mantle over the infirmities of the weak.
Now there is a three-fold mantle that should be cast over the infirmities of the weak. There is a mantle of wisdom, a mantle of faithfulness, and a mantle of compassion, which is to be cast over all the infirmities of weak saints.
First, Strong saints are to cast a mantle of wisdom over the infirmities of weak saints. They are not to present their sins in that ugliness, and with such aggravations, as may terrify, as may sink, as may make a weak saint to despair, or may drive him from the mercy-seat, or as may keep him and Christ asunder, or as may unfit him for the discharge of religious duties. It is more a weakness than a virtue in strong Christians, when a weak saint is fallen, to aggravate his fall to the uttermost, and to present his sins in such a dreadful dress, as shall amaze him. It often proves very prejudicial and dangerous to weak saints, when their infirmities are aggravated beyond Scripture grounds, and beyond what they are able to bear. He that shall lay the same strength to the rubbing of an earthen dish, as he does to the rubbing of a pewter platter, instead of clearing it, shall surely break it all to pieces. The application is easy.
Secondly, There is a mantle of faithfulness that is to be cast over the infirmities of weak saints. A man should never discover the infirmities of a weak saint, especially to such that have neither skill nor will to heal and bury them. The world will but blaspheme and blaze them abroad, to the dishonor of God, to the reproach of religion, and to the grief and scandal of the weak. They will with Ham rather call upon others to scoff at them, than bring a mantle to cover them. Ham was cursed for that he did discover his father's nakedness to his brethren, when it was in his power to have covered it. He saw it, and might have drawn a curtain over it, but would not; and for this, by a spirit of prophecy, he was cursed by his father, Gen. ix. 22. This age is full of such monsters, that rejoice to blaze abroad the infirmities of the saints, and these certainly justice hath or will curse.
Thirdly, There is a mantle of compassion that must be cast over the weaknesses and infirmities of weak saints. When a weak man comes to see his sin, and the Lord gives him to lie down in the dust, and to take shame and confusion to himself, that he has dishonored God, and caused Christ to bleed afresh, and grieved the Spirit; oh now you must draw a covering, and cast a mantle of love and compassion over his soul, that he may not be swallowed up with sorrow. Now you must confirm your love to him, and carry it with as great tenderness and sweetness after his fall, as if he had never fallen. This the apostle presses, 2 Cor. 2:7, 'Love,' says the wise man, 'covers all sin.' Love's mantle is very large. Love claps a plaster upon every sore; love has two hands, and makes use of both, to hide the scars of weak saints. Christ, O strong saints, casts the mantle of his righteousness over your weaknesses, and will not you cast the mantle of love over your brother's infirmities."1
Thomas Brooks The Complete Works of Thomas Brooks vol. 3 (Edinburgh: James Nichol, 1866) p. 101