If you are older than 18 you have likely been involved in a conversation something like this:
"Johnny, I really like you. You are a great guy, but I don't want to see you anymore. I think we ought to see other people."
At some point she may have added, "It's not you, Johnny, it's me."
That was real comforting! Johnny already knew it was her because he's not the one who wanted to stop seeing her!
What does that have to do with the sixth Beatitude?
A whole bunch, actually.
In a very real sense, Jesus is saying, "Blessed is the one whose heart is purely committed to God and who desires to continue seeing Him."
Being in a half-hearted relationship with God will only make you miserable and make Him sick to His stomach:
Being "pure in heart" refers to being “unmixed, as having no double allegiance.” In his commentary on this passage, Warren Wiersbe writes that the “basic idea is that of integrity, singleness of heart, as opposed to duplicity, or a divided heart.” Jesus said it this way in Matthew 6:24: “No one can serve two masters. Either he will hate the one and love the other, or he will be devoted to the one and despise the other. You cannot serve both God and Money.”
Do you want to be in a significant relationship with someone who is half-hearted, double-minded or conflicted toward you? Would you consider yourself in a blessed relationship?
Neither does God!