2 occurrences across the corpus

Apostolic Fathers

Martyrdom of Polycarp 15:1

When he had pronounced this _amen_, and so finished his prayer, those who were appointed for the purpose kindled the fire. And as the flame blazed forth in great fury, we, to whom it was given to witness it, beheld a great miracle, and have been preserved that we might report to others what then took place. For the fire, shaping itself into the form of an arch, like the sail of a ship when filled with the wind, encompassed as by a circle the body of the martyr. And he appeared within not like flesh which is burnt, but as bread that is baked, or as gold and silver glowing in a furnace. Moreover, we perceived such a sweet odour [coming from the pile], as if frankincense or some such precious spices had been smoking there.

1 Enoch

1 Enoch 14:12

And drew nigh to a spacious habitation built also with stones of crystal. Its walls too, as well as pavement, were _formed_ with stones of crystal, and crystal likewise was the ground. Its roof had the appearance of agitated stars and flashes of lightning; and among them were cherubim of fire in a stormy sky. A flame burned around its walls; and its portal blazed with fire. When I entered into this dwelling, it was hot as fire and cold as ice. No _trace_ of delight or of life was there. Terror overwhelmed me, and a fearful shaking seized me.