Luke 10:17-20

Verse 17

The seventy returned again with joy - Bishop Pearce thinks they returned while our Lord was on his slow journey to Jerusalem, and that they had been absent only a few days.
Verse 18

I beheld Satan - Or, Satan himself, τον Σαταναν, the very Satan, the supreme adversary, falling as lightning, with the utmost suddenness, as a flash of lightning falls from the clouds, and at the same time in the most observable manner. The fall was both very sudden and very apparent. Thus should the fall of the corrupt Jewish state be, and thus was the fall of idolatry in the Gentile world.
Verse 19

To tread on serpents, etc. - It is possible that by serpents and scorpions our Lord means the scribes and Pharisees, whom he calls serpents and a brood of vipers, Mat 23:33, (see the note there), because, through the subtilty and venom of the old serpent, the devil, they opposed him and his doctrine; and, by trampling on these, it is likely that he means, they should get a complete victory over such: as it was an ancient custom to trample on the kings and generals who had been taken in battle, to signify the complete conquest which had been gained over them. See Jos 10:24. See also Rom 16:20. See the notes on Mar 16:17, Mar 16:18.
Verse 20

Because your names are written in heaven - This form of speech is taken from the ancient custom of writing the names of all the citizens in a public register, that the several families might be known, and the inheritances properly preserved. This custom is still observed even in these kingdoms, though not particularly noticed. Every child that is born in the land is ordered to be registered, with the names of its parents, and the time when born, baptized, or registered; and this register is generally kept in the parish church, or in some public place of safety. Such a register as this is called in Phi 4:3; Rev 3:5, etc., the book of life, i.e. the book or register where the persons were enrolled as they came into life. It appears also probable, that when any person died, or behaved improperly, his name was sought out and erased from the book, to prevent any confusion that might happen in consequence of improper persons laying claim to an estate, and to cut off the unworthy from the rights and privileges of the peaceable, upright citizens. To this custom of blotting the names of deceased and disorderly persons out of the public registers, there appear to be allusions, Exo 32:32, where see the note; and Rev 3:5; Deu 9:14; Deu 25:19; Deu 29:20; 2Kgs 14:27; Psa 69:28; Psa 109:13, and in other places.
Copyright information for Clarke