Mantra 1

अथ यच्चतुर्थममृतं तन्मरुत उपजीवन्ति सोमेन मुखेन न वै देवा अश्नन्ति न पिबन्त्येतदेवामृतं दृष्ट्वा तृप्यन्ति ॥ ३.९.१ ॥

In plain words

That which is the fourth nectar the Maruts live upon, with Soma for their mouth. The gods do not eat or drink; they are satisfied by merely looking upon this nectar.