Mahabharata 6.20.18

अव्यूहन्मानुषं व्यूहं दैवं गान्धर्वमासुरम्दिवसे दिवसे प्राप्ते भीष्मः शांतनवोऽग्रणीः

avyūhanmānuṣaṃ vyūhaṃ daivaṃ gāndharvamāsuramdivase divase prāpte bhīṣmaḥ śāṃtanavo'graṇīḥ

Our plain-language meaning of this verse is waiting for scholar review.