'Blessing' in the Bible

Now concerning everything which I have said to you, be on your guard; do not mention the name of other gods [either in a blessing or in a curse]; do not let such speech be heard [coming] from your mouth.

Then Moses said [to the Levites], “Dedicate yourselves today to the Lord—for each man has been against his own son and his own brother [in his attempt to escape execution]—so that He may restore and bestow His blessing on you this day.”