"It was a singular way of going to battle against the enemy's army—praising the Lord with singing, and exalting the God of Israel. This was their battle song. They possessed the beauty of holiness. If more praising of God were engaged in now, hope and courage and faith would steadily increase. And would not this strengthen the hands of the valiant soldiers who today are standing in defense of truth? PK 202.1"
"“In His temple doth everyone speak of His glory” ( Psalm 29:9 ), and the song which the ransomed ones will sing—the song of their experience—will declare the glory of God: “Great and marvelous are Thy works, O Lord God, the Almighty; righteous and true are Thy ways, Thou King of the ages. Who shall not fear, O Lord, and glorify Thy name? for Thou only art holy.” Revelation 15:3, 4 , R.V. Ed 308.5"
"“In His temple doth everyone speak of His glory.” Psalm 29:9 . The sweet singer of Israel praised Him upon the harp, saying, “I will speak of the glorious honor of Thy majesty, and of Thy wondrous works. And men shall speak of the might of Thy terrible acts: and I will declare Thy greatness.” Psalm 145:5, 6 . MB 44.1"
Ellen White directly references Psalms 29:9 in this passage.