Praise be! is an expression of joy and gratitude, often used in religious contexts. The two crossword solutions, ALLELUIA (8 letters) and AMEN (4 letters), are both exclamations of praise and agreement that are commonly used in Christian worship services. ALLELUIA is derived from the Hebrew phrase meaning 'praise the Lord, ' while AMEN is derived from the Hebrew phrase meaning 'so be it.' Together, these two words express a powerful sentiment of joy and appreciation for God's blessings.