In the midst. Stronger than the simple ἐν, in, as giving more prominence to the danger.
Sprung up with it (συμφυεῖσαι)
Only here in New Testament. See on Luk 8:6, and Mat 13:7. The technical word among physicians for closing of wounds or ulcers, and the uniting of nerves or bones. Dioscorides uses it, as here, of plants growing in the same place: “The hellebore grows together with the vines.”
Choked (ἀπέπνιξαν)
Lit., choked off. Matthew has the simple ἔπνιξαν, choked; and Mark συνέπνιξαν; the σύν, together, emphasizing the idea of compression. Luke is very fond of compounds and sonorous words. See on Luk 23:51.