Question:
Mat 5:3 "Blessed are the poor in spirit, for theirs is the kingdom of heaven.
What if they don't believe in Jesus Christ? is theirs the kingdom of heaven?
And what if one is 'rich' in the Spirit - isn't theirs the kingdom of heaven, too?
As a dispie, I don't reject the Sermon on the Mount at all. None of the dispies in my church do either. In fact, the pastor had quite a sermon series based on the Beautitudes and their application for Christian life.
The problem comes, though, when some (nondispies) take statements from the Sermon on the Mount and add legalism to this age. We are saved by grace through faith in Jesus Christ. Not through rules.
and there is this:
Mat 5:23 "Therefore if you are presenting your offering at the altar, and there remember that your brother has something against you,Mat 5:24 leave your offering there before the altar and go; first be reconciled to your brother, and then come and present your offering.
I can see application to Christian life....but I don't do animal sacrifices (though my cat is REAL demanding lately....

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I believe it (the Sermon on the Mount) needs to be understood in the context it is given. The applications to Christian life are plentiful.