Rejoice with those who rejoice. Weep with those who weep.
The next duty required, is Christian sympathy and mutual affection between brethren, both in prosperity and adversity, to rejoice in the one, and to mourn together in the other, as being members of the same body. Teaching us,that it is a Christian's duty to rejoice in those good things, whether inward or outward, which befall his brethren; and also to mourn and lay to heart...
We must first give ourselves to the Lord, this is the spring of all obedience. Present your bodies, your whole selves, as living sacrifices; it is by laying your hand on the offering and transferring all your right and interest to God that the sacrifice takes hold. Though he could command with authority, the apostle beseeches us instead, for men are more easily led than driven.
AI summary
Commenting on Romans 12:1-21
Rejoice with them that do rejoice,.... Not in anything sinful and criminal, in a thing of nought, in men's own boastings; all such rejoicing is evil, and not to be joined in; but in things good and laudable, as in outward prosperity; and to rejoice with such, is a very difficult task; for unless persons have a near concern in the prosperity of others, they...