Proverbs 26:2 As the bird by wandering, as the swallow by flying, so the curse causeless shall not come.
There seems a discrepency between the idea that we are created in God’s image to the extent that our words have creative force, that there is power in our prayers, and the opposing idea that a curse has no power unless it is deserved and that a prophet can speak neither blessing nor curse unless God allows it. There is truth on both sides if properly understood.
We were created in God’s image, but we are not exact copies, the earthly tabernacle was a corruptible copy of the one in Heaven, the feast days are shadows of the reality that is the Messiah, and mankind is an imperfect, much scaled down replica of God. Unlike him, we cannot create something out of nothing by merely speaking. We need something on which to build. We are unable to get our own dirt, so we have to make do with what we can find.
When Balaam tried to curse Israel, he failed because, as a prophet, he could only prophecy what God told him. His patron, Balak, understood the principle of Proverbs 26:2, that a curse undeserved has no effect, so he took Balaam to first one place and then another, thinking that a different perspective might give Balaam the hook he needed to make the curse stick. But he misunderstood the nature of a real prophet: prophesy comes from God and no other. If a prophet speaks truth, then his words are the words of God, and God can no more curse the righteous than could Balaam. Hence Balaam’s statement that “[YHWH] has not seen iniquity in Jacob, neither has He seen perverseness in Israel.” It was not that Israel had no sin at all, but that God had chosen to forgive them. Like a husband who chooses to overlook his wife’s flaws, from God’s point of view, Israel had no sin to which a curse could attach.
Finding no fault in Israel, Balaam showed Balak how he might create one that God could not overlook by seducing them into idolatry. This is the “doctrine of Balaam, who taught Balak to cast a stumbling-block before the sons of Israel, to eat things sacrificed to idols and to commit fornication.” (Revelation 2:14) Eating “things sacrificed to idols” does not refer simply to eating meat from sacrificial animals, but to actively participating in the sacrifice. Those who teach God’s people that it is acceptable to engage in pagan rituals and abandon God’s law so long as their “hearts are in the right place” are today’s Balaam. They cause God’s people to commit sins that he cannot overlook, opening them to whatever curse the enemy might choose to throw.