John 4:53

ἔγνω οὖν ὁ πατὴρ ὅτι ἐκείνῃ τῇ ὥρᾳ ἐν ᾗ εἶπεν αὐτῷ ὁ Ἰησοῦς· ὁ υἱός σου ζῇ· καὶ ἐπίστευσεν αὐτὸς καὶ ἡ οἰκία αὐτοῦ ὅλη.

Rough Word-by-word:
he knew therefore the father that that [was] the hour in which he said to him the Jesus, "The son of you he is living," and he believed himself and the house of him whole.

Smooth Translation:
Therefore the father knew that was the hour in which Jesus said to him, "Your son is living," and he himself believed and his whole house.

ἔγνω verb aorist active indicative 3rd singular from γινώσκω (I know) "he knew"

οὖν post positive conjunction "therefore"

ὁ definite article nominative singular masculine "the"

πατὴρ noun nominative singular masculine "father"

ὅτι conjunction "that/because"

ἐκείνῃ demonstrative pronoun dative singular feminine "that [was]" (Note: This pronoun is almost being used adjectivally in the predicate position. That's why I'm supplying the verb.)

τῇ definite article dative singular feminine "the"

ὥρᾳ noun dative singular feminine "hour"

ἐν dative preposition "in"

ᾗ relative pronoun dative singular feminine "which"

εἶπεν verb aorist active indicative 3rd singular from λέγω (I say) "he said"

αὐτῷ pronoun dative singular masculine "to him"

ὁ definite article nominative singular masculine "the"

Ἰησοῦς proper noun nominative singular masculine "Jesus"

ὁ definite article nominative singular masculine "the"

υἱός noun nominative singular masculine "son"

σου pronoun genitive 2nd singular "of you"

ζῇ verb present active indicative 3rd singular from ζάω (I live) "he is living"

καὶ conjunction "and"

ἐπίστευσεν verb aorist active indicative 3rd singular from πιστεύω (I believe) "he believed"

αὐτὸς pronoun nominative singular masculine - intensive use "[he] himself"

καὶ conjunction "and"

ἡ definite article nominative singular feminine "the"

οἰκία noun nominative singular feminine "house"

αὐτοῦ pronoun genitive singular masculine "of him"

ὅλη adjective nominative singular feminine "whole"