The vb. 'to raven,' i.e. prey upon, and the subst. 'raven' or 'ravin,' i.e. prey, both occur in AV. We find also the adj. 'ravening' (Ps 22:13; Mt 7:15) as well as the form 'ravenous' (Isa 35:9; 46:11; Eze 39:4). 'Ravening' is used as a subst. in Lu 11:39 'Your inward part is full of ravening and wickedness' (RV 'extortion').
They gaped upon me with their mouths, as a ravening and a roaring lion.
No lion shall be there, nor any ravenous beast shall go up thereon, it shall not be found there; but the redeemed shall walk there:
Calling a ravenous bird from the east, the man that executeth my counsel from a far country: yes, I have spoken it, I will also bring it to pass; I have purposed it, I will also perform it.
Thou shalt fall upon the mountains of Israel, thou, and all thy bands, and the people that are with thee: I will give thee to the ravenous birds of every sort, and to the beasts of the field to be devoured.
Beware of false prophets, who come to you in sheep's clothing, but inwardly they are ravening wolves.
And the Lord said to him, Now do ye Pharisees make clean the outside of the cup and the platter; but your inward part is full of ravening and wickedness.