The fifth chapter of the Bhagavad Gita is Karma Sanyasa Yoga. In this chapter, Krishna compares the paths of renunciation in actions (Karma Sanyas) and actions with detachment (Karma Yoga) and explains that both are means to reach the same goal and we can choose either. A wise person should perform his/her worldly duties without attachment to the fruits of his/her actions and dedicate them to God. This way they remain unaffected by sin and eventually attain liberation.
Endowed with yoga, [i.e. devoted to the performance of the nitya and naimittika duties.] pure in mind, controlled in body, a conqueror of the organs, the Self of the selves of all beings-he does not become tainted even while performing actions. [The construction of the sentence is this: When this person resorts to nitya and naimittika rites and duties as a means to the achievement of fully Illumination, and thus becomes fully enlightened, then, even when he acts through the apparent functions of the mind, organs, etc., he does not become affected.]OPEN VERSE
Remaining absorbed in the Self, the knower of Reality should think, 'I certainly do not do anything', even while seeing, hearing, touching, smelling, eating, moving, sleeping, breathing, speaking, releasing, holding, opening and closing the eyes-remembering that the organs function in relation to the objects of the organs.OPEN VERSE
One who acts by dedicating actions to Brahman and by renouncing attachment, he does not become polluted by sin, just as a lotus leaf is not by water.OPEN VERSE
By giving up attachment, the yogis undertake work merely through the body, mind, intellect and even the organs, for the purification of themselves.OPEN VERSE
Giving up the result of work by becoming resolute in faith, one attains Peace arising from steadfastness. One who is lacking in resolute faith, being attached to the result under the impulsion of desire, becomes bound.OPEN VERSE