κυριος noun - nominative singular masculine
kurios  koo'-ree-os: supreme in authority, i.e. (as noun) controller; by implication, Master (as a respectful title) -- God, Lord, master, Sir.
γαρ conjunction
gar  gar: assigning a reason (used in argument, explanation or intensification; often with other particles)
εστιν verb - present indicative - third person singular
esti  es-tee':  he (she or it) is; also (with neuter plural) they are
του definite article - genitive singular neuter
ho  ho: the definite article; the (sometimes to be supplied, at others omitted, in English idiom) -- the, this, that, one, he, she, it, etc.
σαββατου noun - genitive singular neuter
sabbaton  sab'-bat-on: sabbath (day), week.
ο definite article - nominative singular masculine
ho  ho: the definite article; the (sometimes to be supplied, at others omitted, in English idiom) -- the, this, that, one, he, she, it, etc.
υιος noun - nominative singular masculine
huios  hwee-os': a son (sometimes of animals), used very widely of immediate, remote or figuratively, kinship -- child, foal, son.
του definite article - genitive singular masculine
ho  ho: the definite article; the (sometimes to be supplied, at others omitted, in English idiom) -- the, this, that, one, he, she, it, etc.
ανθρωπου noun - genitive singular masculine
anthropos  anth'-ro-pos: man-faced, i.e. a human being -- certain, man.