'Blessing' in the Bible

Say to Aaron and his sons, These are the words of blessing which are to be used by you in blessing the children of Israel; say to them,

May the Lord send his blessing on you and keep you:

So they will put my name on the children of Israel, and I will give them my blessing.

And when it came to rest, he said, Take rest, O Lord, and give a blessing to the families of Israel.

Come now, in answer to my prayer, and put a curse on this people, for they are greater than I: and then I may be strong enough to overcome them and send them out of the land: for it is clear that good comes to him who has your blessing, but he on whom you put your curse is cursed.

And God said to Balaam, You are not to go with them, or put a curse on this people, for they have my blessing.

Then Balak said to Balaam, What have you done to me? I sent for you so that my haters might be cursed, and see, you have given them a blessing.

See, I have had orders to give blessing: and he has given a blessing which I have no power to take away.

Then Balak said to Balaam, If you will not put a curse on them, at all events do not give them a blessing.

Now when Balaam saw that it was the Lord's pleasure to give his blessing to Israel, he did not, as at other times, make use of secret arts, but turning his face to the waste land,

He took his sleep stretched out like a lion, and like a she-lion: by whom will his rest be broken? May a blessing be on everyone who gives you blessing, and a curse on everyone by whom you are cursed.

Then Balak was full of wrath against Balaam, and angrily waving his hands he said to Balaam, I sent for you so that those who are against me might be cursed, but now, see, three times you have given them a blessing.