And now, I pray you, consider from this {h} day and upward, from before a stone was laid upon a stone in the temple of the LORD:

(h) Consider how God plagued you with famine before you began to build the temple.

Wesley's Notes

2:15 Upward - Through past years. Before - Before you would set upon the re - building of the temple after you had intermitted it.

Jamieson-Fausset-Brown Bible Commentary

15. consider-literally, "lay it to heart." Ponder earnestly, retracing the past "upward" (that is, backward), comparing what evils heretofore befell you before ye set about this work, with the present time when you have again commenced it, and when in consequence I now engage to "bless you." Hence ye may perceive the evils of disobedience and the blessing of obedience.

Matthew Henry's Concise Commentary

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.