Verses with the word blessedness in the New Testament (3 verses):

Romans 4:6
Even as David also describeth the blessedness of the man, unto whom God imputeth righteousness without works,

Romans 4:9
Cometh this blessedness then upon the circumcision only, or upon the uncircumcision also? for we say that faith was reckoned to Abraham for righteousness.

Galatians 4:15
Where is then the blessedness ye spake of? for I bear you record, that, if it had been possible, ye would have plucked out your own eyes, and have given them to me.