Marcos 9:18

18 Y, siempre que este espíritu se apodera de él, lo tira violentamente al suelo y él echa espuma por la boca, rechina los dientes y se pone rígido.
Así que les pedí a tus discípulos que echaran fuera al espíritu maligno, pero no pudieron hacerlo.

Marcos 9:18 Meaning and Commentary

Mark 9:18

And wheresoever he taketh him
The spirit, or devil, whether it be near fire, or water, whatsoever danger, or dangerous place:

he teareth him;
or throws him into it, or dashes him against it; or inwardly racks, tortures, and convulses him:

and he foameth;
at the mouth, like one that is mad:

and gnasheth with his teeth;
through the excessive pain he is in:

and pineth away;
his flesh is withered, dried up, and consumed away. This was the sad deplorable case this child was in, who was his father's only child, and therefore his health and life were very desirable: now he further observes to Christ, saying,

and I spake to thy disciples that they should cast him out, and
they could not.
Christ being absent, he entreated the disciples, who had power against unclean spirits, to cast them out; that they would make use of it, and dispossess this dumb and evil spirit; and who did make trial to cast him out, but were not able to effect it; (See Gill on Matthew 17:16).

Marcos 9:18 In-Context

16 —preguntó Jesús.

17 Un hombre de la multitud tomó la palabra y dijo:
—Maestro, traje a mi hijo para que lo sanaras. Está poseído por un espíritu maligno que no le permite hablar.

18 Y, siempre que este espíritu se apodera de él, lo tira violentamente al suelo y él echa espuma por la boca, rechina los dientes y se pone rígido.
Así que les pedí a tus discípulos que echaran fuera al espíritu maligno, pero no pudieron hacerlo.

19 Jesús les dijo:

20 Así que se lo llevaron. Cuando el espíritu maligno vio a Jesús, le causó una violenta convulsión al muchacho, quien cayó al piso retorciéndose y echando espuma por la boca.