He that. that. Read this in connection with the previous verse: "let him drink that believeth on Me".
as. according as.
hath said. hath said [concerning Me]. App-107.
out of. Greek. ek. App-104. as in verses: John 7:41; John 7:52. Not the same word as in John 7:42.
His belly. Put by Figure of speech Synecdoche (of the Part), App-6, for the whole person, for emphasis. Himself. Here referring to Messiah (the Giver), not to the believer. He is, and will be, the Source of all spiritual blessing "as the Scripture hath said": Isaiah 12:3; Isaiah 55:1; Isaiah 58:11.Ezekiel 47:1.Joel 3:18; Zechariah 13:1; Zechariah 14:8. See App-107.
His. Referring not to the believer (the receiver), but to the Lord (the Giver).
shall flow. Greek. rheo. Occurs only here in N.T. rivers. This is the emphatic word, by the Figure of speech Hyperbaton (App-6), implying abundance. See Numbers 20:11; 1 Corinthians 10:4,
living. See note on John 4:10.