The cruelty from Jesus

Jesus seemed not familiar with the writings of the Old Testament.
He obviously did not know that His own father drowned the entire population of the world except for eight people. Otherwise, if Jesus were familiar with the killings, he was not fair to command: "Thou shalt love the Lord thy God with all of thy heart, with all of thy soul, and with all of thy mind." For my part, I am nost proud to have walked out of the Catholic Church years ago. Specially when I discovered that Jesus himself was a misguided Catholic. Poch Suzara