The examples you cite of Jesus 'upping' things are all examples of his radical interpretation of the Mosaic Law.  These are the famous 'you have heard it said ... but I say to you' teachings in Matthew's gospel.  Jesus did teach a lot more than there is room to discuss here in a single post.  And Christians take Jesus at his word when He said ALL the law, and ALL the prophets are fulfilled in the love of God and the love of neighbour.  I read the readings for the day every morning about dawn, and they fit rather beautifully the points I've been trying to make here.  You imply there is some sort of conflict between what I've posted and what the readings say, but you don't explain what you mean ...  In today's gospel reading, Jesus teaches us how to pray.  How does the Lord's Prayer conflict with what I've said?