The Lord will not cast away weak saints, by reason of the weaknesses that cleaves to their persons or services.

In 2 Chron. 30:18–20, there came a multitude of people to eat the passover, but they were not prepared according to the preparation of the sanctuary; therefore Hezekiah puts up a prayer for them, and the text saith, that the ‘Lord hearkened to Hezekiah, and healed the people.’ The Lord looked upon their uprightness, and so passed over all their other weaknesses. He will not throw them away for that hypocrisy that is in them, because of that little sincerity that is in them. He will not cast away weak saints for that pride that is in them, because of those rays of humility that shine in them. He will not despise his people for their passions, because of those grains of meekness that are in them. We will not throw away a little gold because of a great deal of dross that cleaves to it, nor a little wheat because mixed with much chaff, and will God? will God?”

“He that drew Alexander, whilst he had a scar upon his face, drew him with his finger upon the scar. So when the Lord comes to look upon a poor soul, he lays his finger upon the scar, upon the infirmity, that he may see nothing but grace, which is the beauty and the glory of the soul. Ah! but weak Christians are more apt to look upon their infirmities than on their graces, and because their little gold is mixed with a great deal of dross, they are ready to throw away all as dross. Well, remember this, the Lord Jesus hath as great and as large an interest in the weakest saints, as he hath in the strongest. He hath the interest of a friend, and the interest of a father, and the interest of a head, and the interest of a husband; and, therefore, though saints be weak, yea, though they be very weak, yet having as great and as large an interest in them as in the strongest saints, he cannot but overlook their weakness, and keep a fixed eye upon their graces.”

Thomas Brooks

The Unsearchable Riches of Christ