"Meekness is the inward adorning, which God estimates as of great price. The apostle speaks of this as more excellent and valuable than gold or pearls or costly array. While the outward adorning beautifies only the mortal body, the ornament of meekness adorns the soul and connects finite man with the infinite God. This is the ornament of God's own choice. He who garnished the heavens with the orbs of light has by the same Spirit promised that “he will beautify the meek with salvation” ( Psalm 149:4 ). Angels of heaven will register as best adorned those who put on the Lord Jesus Christ and walk with Him in meekness and lowliness of mind. SL 16.2"
EGW directly quotes Psalm 149:4, connecting it to the idea of God beautifying the meek.
"Far better would it be for us to suffer under false accusation than to inflict upon ourselves the torture of retaliation upon our enemies. The spirit of hatred and revenge originated with Satan, and can bring only evil to him who cherishes it. Lowliness of heart, that meekness which is the fruit of abiding in Christ, is the true secret of blessing. “He will beautify the meek with salvation.” Psalm 149:4 . MB 17.1"
Ellen White directly references Psalms 149:4 in this passage.