When the LORD your God brings you into the land you are entering to possess, you are to proclaim the blessing on Mount Gerizim and the curse on Mount Ebal.
KJV
And it shall come to pass, when the LORD thy God hath brought thee in unto the land whither thou goest to possess it, that thou shalt put the blessing upon mount Gerizim, and the curse upon mount Ebal.
ASV
And it shall come to pass, when Jehovah thy God shall bring thee into the land whither thou goest to possess it, that thou shalt set the blessing upon mount Gerizim, and the curse upon mount Ebal.