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 114
When Israel went out of Egypt, the house of Jacob from a people of strange language;
Judah was his sanctuary, and Israel his dominion.
The sea saw it, and fled: Jordan was driven back.
The mountains skipped like rams, and the little hills like lambs.
What ailed thee, O thou sea, that thou fleddest? thou Jordan, that thou wast driven back?
Ye mountains, that ye skipped like rams; and ye little hills, like lambs?
Tremble, thou earth, at the presence of the Lord, at the presence of the God of Jacob;
Which turned the rock into a standing water, the flint into a fountain of waters.