The Book of Psalms is canonical in Judaism (Ketuvim) and Christianity (Old Testament), with its authority confirmed by ancient manuscripts (Qumran), the New Testament, and councils (Hippo, Carthage). The Ethiopian Orthodox Tewahedo Church, however, has a broader canon that includes Psalm 151 as an integral part of the Psalter, accepted as Holy Scripture also by Orthodox, Syriac, and Armenian traditions, demonstrating the historical diversity of biblical canons.
Psalms
Chapter 124 — A Song of degrees of David.
If it had not been the LORD who was on our side, now may Israel say;
If it had not been the LORD who was on our side, when men rose up against us:
Then they had swallowed us up quick, when their wrath was kindled against us:
Then the waters had overwhelmed us, the stream had gone over our soul:
Then the proud waters had gone over our soul.
Blessed be the LORD, who hath not given us as a prey to their teeth.
Our soul is escaped as a bird out of the snare of the fowlers: the snare is broken, and we are escaped.
Our help is in the name of the LORD, who made heaven and earth.