The Scofield Bible Commentary, by Cyrus Ingerson Scofield, [1917], at sacred-texts.com
market a pool
Or, gate, (Neh 3:1); (Neh 12:39).
waiting for
The Sinai manuscript omits "waiting for the moving of the water." and all of (Joh 5:4).
For
See margin reference, (See Scofield) - (Joh 5:3).
angel
See note, (See Scofield) - (Heb 1:4).
sin
Sin
(See Scofield) - (Rom 3:23).
his Father
(Greek, "patēr", "his own Father"). The Jews understood perfectly that Jesus was claiming to be God.
Compare (Joh 10:33).
witness
Compare (Joh 8:14). In (Joh 5:31).
Our Lord, defending His Messianic claims before Jews who denied those claims, accepts the biblical rule of evidence, which required "two witnesses"; (Joh 8:17); (Num 35:30); (Deu 17:6). A paraphrase of verse (Joh 5:31) would be: "If I bear witness of myself ye will say my witness is not true."
Compare (Joh 8:14).
saved
(See Scofield) - (Rom 1:16).
seen
(See Scofield) - (Joh 1:18).