Dhamma Verses (Dhammapada, KN 2)

8: The Chapter about the Thousands – 110
The benefits of worshipping elders
When the boy Dīghāyu was destined to die, the Buddha and the
monks chanted protective verses for him and he lived on; the
Buddha said long life is not the only thing a man received
when he reverenced the elders, and then he taught them with
this verse.
109. Abhivādanasīlissa niccaṁ vaddhāpacāyino,
cattāro dhammā vaḍḍhanti: āyu vaṇṇo sukhaṁ balaṁ.
For the one who is constantly
worshipping honourable elders,
four things increase: the length of life,
beauty and happiness and strength.