JMNT(i)
17 Then one out of the crowd decidedly answered Him, "Teacher, I brought my son to you. He continues having a speechless spirit (or: a breath-effect which renders him incapable of speech; or: an attitude which results in his being mute),
18 "so wheresoever it may seize him or get him down, it repeatedly dashes him [upon the ground] (or: [inwardly] tears and rips him up), and he continues frothing and foaming at the mouth, as well as grinding his teeth, and he progressively withers (either: becomes weak and limp; or: becomes rigid and stiff). So I spoke to your disciples so that they would cast it out (or: throw if forth from out of the midst; eject it), and yet they did not have the strength (or: they are not strong [enough])."
19 Now He, responding with a considered reply, is then saying to them, "O generation without faith and trust (or: faithless, disloyal and unbelieving generation)! Till when will I continue in being facing toward (or: being with) you folks? Till when am I continuing holding back with you (or: = bearing or putting up with you people)? Go ahead and bring him to Me."
20 So they brought him to Him, and at having seen Him, the spirit (breath-effect; attitude; mood and internal disposition; result of a breath or of breathing) at once violently convulses him and then, falling on the ground, he began rolling and wallowing (or, as a passive: continued being rolled) while continuously frothing at the mouth.
21 So He asked his father, "How much time (or: How long) is it that something like this has happened to him, and continued being thus for him?"
22 And [the father] said, "From childhood on. Further, many times it also throws him into fire or into places of water, so that it might destroy him (or, possibly: that it can loose-away from him). But now, if you continue having power and ability [to do] anything, in instant out-flowing of compassion upon us, come quickly to our aid, and help us!"
23 So Jesus said to him, "As to your 'if you continue having power and ability,' all things [are] possible to (for; by; in; with) the one habitually trusting (or: progressively believing)." [or, reading with A & other MSS: "About the 'if': you continue being able (having power) to trust (or: to believe). Everything (or: All) {is} endued with power for the one continuously trusting (or: progressively believing; constantly having confidence)!"]
24 The father of the young boy (the lad), immediately crying out, with tears was saying, "I continue trusting (or: I habitually have faith; I am now believing)! Be now helping me in the lack of faith (or: Continue being my immediate aid in the unbelief, or for lack of trust and confidence; or: Help my unbelief; Give progressive aid [in the area of] the disbelief from me)!"
25 Now Jesus, noticing (or: seeing) that the crowd is progressively running together upon [their position] (or: rapidly converging on [them]), at once spoke seriously but respectfully to the unclean spirit (or: culturally unpruned, and thus unproductive, attitude), adding a charge (or: Jesus respectfully penalized the unclean breath-effect; or: Jesus appraised the impure spirit and assessed an injunction upon it; [or, paraphrasing an interpretation: Jesus strongly speaks to the disabling mental, physical and psychological condition in reproof {censure, reprimand, or strict enjoining}]), saying to it, [that is, to] the speechless and dull spirit, "I, Myself, am now making complete arrangements for you (or: am presently setting an injunction upon you): at once come forth from out of the midst of him, and no longer (or: no more) may you at any time enter into him."