Why did every israelite ever to exist serve a single being mono God?

Moses,David,Job,Abraham,Solomon,Daniel,e… all served a single being mono God-Its fact of israelite ( Jewish ) history. Which means that when the man Jesus attended the synagogues for 30 years he was taught a single being mono God, he never refuted that fact because it was the true God the israelites served. Jesus taught it-John 17:1-6-- here Jesus called the father--The only true God--Paul taught it which means every apostle taught it--1 Corinthians 8:6-- there is one God to all the Father (( not Father,son,holy spirit )) Which means that catholocism translators twisted certain greek words to fit their pagan false god worshipping king lead council teachings that God is a trinity. If you didnt know greek words could have 4 -5 different meanings.