Were Jesus’ Commands in the Gospels for the Jews Only or for the Present-Day Body of Christ?

Questions about whether Jesus’ commands in the Gospels were for the Jews only or for the present-day body of Christ, whether God chose to be illiterate when he came to earth, and whether we should only pray for the specific items mentioned in the Lord’s Prayer. Were Jesus’ commands in the Gospels only to be followed by the Jews back then and not the present-day body of Christ? Why do you think God chose to be illiterate when he came to earth? When Jesus taught the Lord’s Prayer, did he mean we should only pray that way and not ask for any other specific items?