Bhagavad Gita · Chapter 18: Freedom through Renunciation

Bhagavad Gita 18.5

yajñadānatapaḥkarma na tyājyaṃ kāryameva tat | yajño dānaṃ tapaścaiva pāvanāni manīṣiṇām ||

Acts of sacrifice, giving, and austerity should not be given up; they should certainly be done. Sacrifice, giving, and austerity purify the wise.

Modern context

Worship, giving and self-discipline should never be given up; they purify even the wise. This is important. Some might think that once a person is wise, they no longer need practice. Krishna disagrees. Even the wise benefit from continued generosity, devotion and discipline. Spiritual maturity does not mean graduating from practice.