Certainly, it is a great blessing to have a prophet in one's home. If his presence alone is not enough, Alma follows the pattern later given to the missionaries when he blesses the house of Amulek. The Lord said, in whatsoever house ye enter, and they receive you, leave your blessing upon that house (DC 75:19), and into whatsoever house ye enter, first say, Peace be to this house. And if the son of peace be there, your peace shall rest upon it (Lu 10:6). These are the blessings of entertaining the messengers of the Lord. This was the blessing which Amulek received of Alma (v. 22).