A.T. Robertson Commentary 1 Timothy 4:8

"for bodily exercise is profitable for a little; but godliness is profitable for all things, having promise of the life which now is, and of that which is to come." — 1 Timothy 4:8 (ASV)

Bodily exercise (η σωματικη γυμνασια). Γυμνασια (from γυμναζω), also a common old word, here only in N.T. So also σωματικη (from σωμα, body) in N.T. only here and Lu 3:22.

Profitable (ωφελιμος). Another old word (from ωφελεω, to help, to profit), in N.T. only here, Titus 3:8; 2 Timothy 3:16.

For a little (προς ολιγον). "For little." Probably extent in contrast to προς παντα (for all things), though in Jas 4:14 it is time "for a little while."

Which now is (της νυν). "The now life."

Of that which is to come (της μελλουσης). "Of the coming (future) life."