'Richness' in the Bible

Now if some of the branches were broken off, and you, a wild olive shoot, were grafted in among them and participated in the richness of the olive root,

Let the [spoken] word of Christ have its home within you [dwelling in your heart and mind—permeating every aspect of your being] as you teach [spiritual things] and admonish and train one another with all wisdom, singing psalms and hymns and spiritual songs with thankfulness in your hearts to God.