Passage
Blessed are the clean of heart: they shall see God.
Blessed are the clean of heart: they shall see God.
Matthew 5:6 Blessed are they that hunger and thirst after justice: for they shall have their fill.
Matthew 5:7 Blessed are the merciful: for they shall obtain mercy.
Matthew 5:8 Blessed are the clean of heart: they shall see God.
Matthew 5:9 Blessed are the peacemakers: for they shall be called the children of God.
Matthew 5:10 Blessed are they that suffer persecution for justice' sake: for theirs is the kingdom of heaven.
The verse centers on "blessed", "clean", "heart", and "shall". It is saying that the verse draws attention to "blessed" and "clean", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 7's "Blessed are the merciful for they shall..." into verse 9's "Blessed are the peacemakers for they shall...", so "blessed" and "clean" belong inside that flow. In Matthew context, the local focus is Christ, faith, and discipleship.
A plain takeaway is to answer the verse's own emphasis on "blessed" and "clean" with trust shaped by these words, not by a vague optimism outside the passage.