ADORN (κοσμέω, G3175, to arrange, put in order, decorate). The word means “to beautify” and is used in Scripture in both a literal and a fig. sense. When used literally, it usually refers to women beautifying themselves so that they will be pleasing to their husbands (1 Pet 3:5). Isaiah 61:10 uses it fig. to describe the garments of salvation with which the child of God is clothed. Paul says that slaves are to live in such a way that they will adorn the doctrine of God (Titus 2:10). Revelation 21:2 compares the beauty of the Church to a bride adorned for her husband. Both Paul and Peter urge women not to be overly concerned about personal adornment, but to dress modestly and sensibly, and to be concerned about the beauty of good deeds (1 Tim 2:9; 1 Peter 3:5). The words of the apostles harmonize with the teaching of Scripture in general, that emphasis should be placed upon spiritual beauty rather than upon physical adornment.
International Standard Bible Encyclopedia (1915)
Has as its primary meaning "to arrange," "to put In order," "to decorate." It is used with reference to the manner in which Christian women were urged to dress. This was a vital question in the early church, and both Paul and Peter give advice on the subject (1Ti 2:9; 1Pe 3:3).
Figurative: In Mt 12:44 the the word is translated "garnish" and is used in a figurative sense. It describes accurately the condition of the Jewish nation. Even though they have swept out idolatry and have adorned the life with much ceremony and endless religious prescriptions yet the evil spirit can say, "I will return to my house." This same thing has repeatedly been done by individuals and nations when reforms have been instituted, but Christ was not enthroned and the heart or nation was still dominated by evil. It is used also in a figurative sense with reference to the graces of the Christian life. When we remember how very highly Orientals esteem the adornment of the body, its use here becomes very forceful. It is this that makes Ps 45:13 of special significance as to the beauty and glory of the church as she is presented to God. See also Pr 1:9; 4:9; Isa 61:10; 1Pe 3:4,5. Consecration to God, the indwelling of His Spirit, righteousness, a meek and quiet spirit--these are the true adornments of the life. All these passages carry with them the idea of joy, the satisfaction that should be ours in these possessions.
Jacob W. Kapp