In summary

The fundamental aim of the Sermon is to present Jesus and his kingdom vision for his kingdom people, and the only acceptable response to this Sermon is to embrace him, to accept the challenge; that means to do what he says.— Sermon on the Mount, page 276

<idle musing>
Boom! Too easy, isn't it? : )

Of course, you can only do it through the power of the Holy Spirit, but the good news is that that power is available...
</idle musing>