Mahabharata 6.26.8

परित्राणाय साधूनां विनाशाय च दुष्कृताम्धर्मसंस्थापनार्थाय संभवामि युगे युगे

paritrāṇāya sādhūnāṃ vināśāya ca duṣkṛtāmdharmasaṃsthāpanārthāya saṃbhavāmi yuge yuge

Our plain-language meaning of this verse is waiting for scholar review.