Speech is one symptom of Affection — Wonder

Speech is one symptom of Affection 1
And Silence one-
The perfectest communication
Is heard of none-

Exists and its indorsement 5
Is had within-
Behold, said the Apostle,
Yet had not seen!
(F.1694/J.1681)
[1] affection:: a bodily state due to any influence (OED 9).
[3] communication:: between human and God through apostle.
[4] heard of none:: never heard of it happened; no such thing.
[5] Exists:: the affection exists.
[6] indorsement is had within:: testimony in Bible.
[7] Behold:: one of the most often used words in Bible. Apostle:: messenger of Jesus.
[8] not seen:: what the apostle asked people to behold, the wonders had never seen.