Chapter: 6, Verse: 5
Sanskrit
उद्धरेदात्मनाऽऽत्मानं नात्मानमवसादयेत्। आत्मैव ह्यात्मनो बन्धुरात्मैव रिपुरात्मनः।।6.5।।
Summary
Let him seek liberation with the help of his Highest Self, and never disgrace his own Self. For that Self is his only friend; yet it can also be his enemy.