Christ is the Rock upon which the Church is built. --The Church being built up is God's work, it is not new innovations, but preaching Christ in all his glory as Saviour that God will own and bless.--This is the secret of keeping a Church true to the faith, and where backslidden, the way to restoring and building up again. --The points covered--1- The times when the LORD builds up his Church-2- The LORD's Glory-3- The LORD's appearing in his Glory is when the Church is built up.