Baruch Adonai L'Olam is a paragraph recited during Shacharit

Shacharit

Shacharit is the the daily morning Tefillah of the Jewish people, one of the three times there is prayer each day.Shacharit is said to have been established by the patriarch Abraham when he prayed in the morning...

 in Pesukei Dezimra following Hallel

Hallel (Pesukei Dezimra)

Hallel of pesukei dezimra a selection of six psalms recited as part of pesukei dezimra — the introduction the daily morning service. This "Hallel" is specifically Ashrei followed by Psalms 146-150...

. The paragraph consists verses beginning with the word Baruch (ברוך), Hebrew for Blessed, which states that God is a source of blessing. It is recited following Hallel as a way to relate Hallel to blessing.

The paragraph consists of four verses: Verse 53 from Psalm 89

Psalm 89

Psalm 89 is in the Book of Psalms, part of the Hebrew Bible.The superscription of this Psalm claims that it was written by Ethan, the Ezrahite. Ethan the Ezrahite, along with Heman the Ezrahite , was a wise man from the time of Solomon...

, verse 21 from Psalm 135

Psalm 135

-Judaism:*Is recited in its entirety during the Pesukei Dezimra on Shabbat, Yom Tov, and Hoshana Rabbah.*Is recited on the fifth day of Passover in some traditions....

, and verses 18-19 from Psalm 72

Psalm 72

-Judaism:*Verses 18-19 are the third and fourth verses of Baruch Hashem L'Olam in Pesukei Dezimra and Baruch Hashem L'Olam during Maariv....

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The word Amen

Amen

The word amen is a declaration of affirmation found in the Hebrew Bible and New Testament. Its use in Judaism dates back to its earliest texts. It has been generally adopted in Christian worship as a concluding word for prayers and hymns. In Islam, it is the standard ending to Dua and the...

is recited twice in the first verse as an emphasis on this word. The word Amen can have three meanings: to accept a vow upon oneself, to acknowledge the truth of a statement, and the expression of hope that a prayer will come true.