The best praise, however, is a heart song. So the Apostle adds "singing in your hearts unto God." And it is to be in "grace," that is to say, _in_ it as the atmosphere and element in which the song moves, which is nearly equivalent to "by means of the Divine grace" which works in the heart, and impels to that perpetual music of silent praise. If we have the peace of Christ in our hearts, and the word of Christ dwelling in us richly in all wisdom, then an unspoken and perpetual music will dwell there too, "a noise like of a hidden brook" singing for ever its "quiet tune." III. The all-hallowing Name of Jesus. From worship the Apostle passes to life, and crowns the entire series of injunctions with an all-comprehensive precept, covering the whole ground of action. "_Whatsoever_ ye do, in word or deed"--then, not merely worship, specially so called, but everything is to come under the influence of the same motive. That expresses emphatically the sanctity of common life, and extends the idea of worship to all deeds. "Whatsoever ye _do_ in _word_"--then words are _doings_, and in many respects the most important of our doings. Some words, though they fade off the ear so quickly, outlast all contemporary deeds, and are more lasting than brass. Not only "the word of the Lord," but, in a very solemn sense, the word of man "endureth for ever." Do all "in the name of the Lord Jesus." That means at least two things--in obedience to His authority, and in dependence on His help. These two are the twin talismans which change the whole character of our actions, and preserve us, in doing them, from every harm. That name hallows and ennobles all work. Nothing can be so small but this will make it great, nor so monotonous and tame but this will make it beautiful and fresh. The name now, as of old, casts out devils and stills storms. "For the name of the Lord Jesus" is the silken padding which makes our yokes easy. It brings the sudden strength which makes our burdens light. We may write it over all our actions. If there be any on which we dare not inscribe it, they are not for us.