Barnes' Notes on the N.T.:  Seeketh not her own. There is, perhaps, not a more striking or important expression in the New Testament than this; or one that more beautifully sets forth the nature and power of that love which is produced by true religion. Its evident meaning is, that it is not selfish; it does not seek its own happiness exclusively or mainly; it does not seek its own happiness to the injury of others. This expression is not, however, to be pressed as if Paul meant to teach that a man should not regard his own welfare at all; or have no respect to his health, his property, his happiness, or his salvation. Every man is bound to pursue such a course of life as will ultimately secure his own salvation. But it is not simply or mainly that he may be happy that he is to seek it, it is, that he may thus glorify God his Saviour; and accomplish the great design which his Maker has had in view in his creation and redemption. If his happiness is the main or leading thing, it proves that he is supremely selfish; and selfishness is not religion. The expression here used is comparative, and denotes that this is not the main, the chief, the only thing which one who is under the influence of love or true religion will seek. True religion, or love to others, will prompt us to seek their welfare with self-denial and personal sacrifice and toil. Similar expressions, to denote comparison, occur frequently in the sacred Scriptures. Thus, where it is said, (Hosea ; 6:6; Micah 6:8; Matthew 9:13,) "I desired mercy, and not sacrifice;" it is meant, "I desired mercy more than I desired sacrifice; I did not wish that mercy should be forgotten or excluded in the attention to the mere ceremonies of religion." The sense here is, therefore, that a man under the influence of true love or religion does not make his own happiness or salvation the main or leading thing; he does not make all other things subservient to this; he seeks the welfare of others, and desires to promote their happiness and salvation, even at great personal sacrifice and self-denial. It is the characteristic of the man, not that he promotes his own worth, health, happiness, or salvation, but that he lives to do good to others. Love to others will prompt to that, and that alone. There is not a particle of selfishness in true love. It seeks the welfare of others, and of all others. That true religion will produce this, is evident everywhere in the New Testament; and especially in the life of the Lord Jesus, whose whole biography is comprehended in one expressive declaration, "who went about DOING GOOD," Acts 10:38. It follows from this statement,

1. that no man is a Christian who lives for himself alone; or who makes it his main business to promote his own happiness and salvation.
2. No man is a Christian who does not deny himself; or no one who is not willing to sacrifice: his own comfort, time, wealth, and ease, to advance the welfare of mankind.
3. It is this principle which is yet to convert the world. Long since the whole world would have been converted, had all Christians been under its influence. And when ALL Christians make it their grand object not to seek their own, but the good of others; when true charity shall occupy its appropriate place in the heart of every professed child of God, then this world will be speedily converted to the Saviour. Then there will be no want of funds to spread Bibles and tracts; to sustain missionaries, or to establish colleges and schools; then there will be no want of men who shall be willing to go to any part of the earth to preach the gospel; and then there will be no want of prayer to implore the Divine mercy on a ruined and perishing world. Oh, may the time soon come when all the selfishness in the human heart shall be dissolved, and when the whole world shall be embraced in the benevolence of Christians, and the time, and talent, and wealth of the whole church shall be regarded as consecrated to God, and employed and expended under the influence of Christian love!