Paul changing the meaning again , he's saying our Saviour is the stumbling block

Paul changing the meaning again , he's saying our Saviour is the stumbling block Isaiah 28:16 16 Therefore thus saith the Lord God, Behold, I lay in Zion for a foundation a stone, a tried stone, a precious corner stone, a sure foundation: he that believeth shall not make haste. Romans 9:33 33 As it is written, Behold, I lay in Sion a stumbling stone and rock of offence: and whosoever believeth on him shall not be ashamed.