12 If someone carries consecrated meat in the fold of their garment, and that fold touches some bread or stew, some wine, olive oil or other food, does it become consecrated?' " The priests answered, "No." 13 Then Haggai said, "If a person defiled by contact with a dead body touches one of these things, does it become defiled?" "Yes," the priests replied, "it becomes defiled." 14 Then Haggai said, " 'So it is with this people and this nation in my sight,' declares the Lord. 'Whatever they do and whatever they offer there is defiled.
15 To the pure, all things are pure, but to those who are corrupted and do not believe, nothing is pure. In fact, both their minds and consciences are corrupted.
(Read Titus 1:10-16)
False teachers are described. Faithful ministers must oppose such in good time, that their folly being made manifest, they may go no further They had a base end in what they did; serving a worldly interest under pretence of religion: for the love of money is the root of all evil. Such should be resisted, and put to shame, by sound doctrine from the Scriptures. Shameful actions, the reproach of heathens, should be far from Christians; falsehood and lying, envious craft and cruelty, brutal and sensual practices, and idleness and sloth, are sins condemned even by the light of nature. But Christian meekness is as far from cowardly passing over sin and error, as from anger and impatience. And though there may be national differences of character, yet the heart of man in every age and place is deceitful and desperately wicked. But the sharpest reproofs must aim at the good of the reproved; and soundness in the faith is most desirable and necessary. To those who are defiled and unbelieving, nothing is pure; they abuse, and turn things lawful and good into sin. Many profess to know God, yet in their lives deny and reject him. See the miserable state of hypocrites, such as have a form of godliness, but are without the power; yet let us not be so ready to fix this charge on others, as careful that it does not apply to ourselves.
Matthew Henry's Commentary on Haggai 2:12-14
Commentary on Haggai 2:10-19
(Read Haggai 2:10-19)
Many spoiled this good work, by going about it with unholy hearts and hands, and were likely to gain no advantage by it. The sum of these two rules of the law is, that sin is more easily learned from others than holiness. The impurity of their hearts and lives shall make the work of their hands, and all their offerings, unclean before God. The case is the same with us. When employed in any good work, we should watch over ourselves, lest we render it unclean by our corruptions. When we begin to make conscience of duty to God, we may expect his blessing; and whoso is wise will understand the loving-kindness of the Lord. God will curse the blessings of the wicked, and make bitter the prosperity of the careless; but he will sweeten the cup of affliction to those who diligently serve him.