Psalms 41:13

Blessed be the LORD God of Israel from everlasting, and to everlasting. Amen, and Amen.

Blessed be the LORD God of Israel from everlasting to everlasting closes the first book of the Psalms, which runs from Psalm 1 to Psalm 41 inclusive and ends with Psalm 41. Within a division of the Psalms into four books, it ends the section Psalms 12-41, all but one of which is entitled a Psalm of David. Those songs give insight into David's experiences as shepherd, fugitive, warrior, and delivered king, marked by mistrust of his own strength and exaltation of God's power, confidence in God's might and goodness, assurance of the ultimate overthrow of all wickedness and the triumph of all good, and lessons of trust, instruction, devotion, comfort, help, and worship meeting every condition of life. There is something in every one of them of the experience of Christ, great David's greater Son.

It is the emphatic concluding doxology and praise of the first book, blessing and praising the LORD God of Israel from everlasting to everlasting as worthy of blessing forever. Its close is emphatic, Amen, and Amen.

It shows that God's people should answer His truth with Amen, and Amen from the heart and not from the lips only, in obedience to the Lord's command to all the people to say Amen. The double Amen testifies that the message is received as from heaven when meat in due season is spoken as truth as it is in Jesus, and it strengthens the soul of the one who responds. To so respond refuses to quench the Spirit by resisting its prompting, and it brings God's blessing and happiness to those who do what they know. It helps ministers preach with more freedom and courage and helps lay members pray and testify better by holding up and steadying ministers' and one another's hands like Aaron and Hur.