Jesus said unto him, Thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind. This is the first and great commandment. And the second [is] like unto it, Thou shalt love thy neighbour as thyself. On these two commandments hang all the law and the prophets. (Matthew 37:40)
And thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind, and with all thy strength: this [is] the first commandment.And the second [is] like, [namely] this, Thou shalt love thy neighbour as thyself. There is none other commandment greater than these. (Mark 12:30-31)
For this, Thou shalt not commit adultery, Thou shalt not kill, Thou shalt not steal, Thou shalt not bear false witness, Thou shalt not covet; and if [there be] any other commandment, it is briefly comprehended in this saying, namely, Thou shalt love thy neighbour as thyself. (Romans 13:9)
For all the law is fulfilled in one word, [even] in this; Thou shalt love thy neighbour as thyself. (Galacians 5:14)
If ye fulfil the royal law according to the scripture, Thou shalt love thy neighbour as thyself, ye do well: (James 2:8)
That's what Jesus, Paul and James said. Now who in the Bible said to be intolerant and insulting to people who are different than you?
