Ramayana :

Shabari was a simple, old, tribal woman who was deeply devoted to Lord Rama. She served him sweet berries which she had pickedfrom the forest herself. To ensure that each berry was sweet, shetasted each one before serving them to Lord Rama. Laxman, his.brother, was very offended that she was serving them half eatenberries. However, Lord Rama ate the berries with great joy andsaid anything served with love was pure