RV 4.19.1
एवा त्वाम् इन्द्र वज्रिन्न् अत्र विश्वे देवासः सुहवास ऊमाः । महाम् उभे रोदसी वृद्धम् ऋष्वं निर् एकम् इद् वृणते वृत्रहत्ये ॥
evā tvām indra vajrinn atra viśve devāsaḥ suhavāsa ūmāḥ | mahām ubhe rodasī vṛddham ṛṣvaṃ nir ekam id vṛṇate vṛtrahatye ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
Thee, verily, O Thunder-wielding Indra, all the Gods here, the Helpers swift to listen, And both the worlds elected, thee the Mighty, High, waxen strong, alone to slaughter Vrtra.
Translated by Ralph T. H. Griffith (1896)