What is the meaning of John 5:4?

* The two F.O.G. Bibles & Commentary below are currently a work in progress.

Berean Standard Bible (BSB)

for an angel went down at certain times into the pool, and stirred up the water. Whoever stepped in first after the stirring of the water was made whole of whatever disease he had.

World English Bible (WEB)

For{G1063} an angel{G32} went down{G2597}{(G5707)} at{G2596} a certain season{G2540} into{G1722} the pool{G2861}, and{G2532} troubled{G5015}{(G5707)} the water{G5204}: whosoever then{G3767} first{G4413} after{G3326} the troubling{G5016} of the water{G5204} stepped in{G1684}{(G5631)} was made{G1096}{(G5711)} whole{G5199} of{G3739} whatsoever{G1221} disease{G3553} he had{G2722}{(G5712)}.

Strong's King James

(4) Because an angel of יהוה YAHWEH went down at times into the pool and stirred up the water. So the first stepping in, after the stirring of the water was made healthy where the disease had held fast.

The F.O.G*

[4] From time to time, an angel of Yahweh would stir the waters, and the first person to enter afterward would be healed of whatever affliction they carried.

The F.O.G Paraphrase

for a messenger at a set time was going down in the pool, and was troubling the water, the first then having gone in after the troubling of the water, became whole of whatever sickness he was held.

Young's Literal Translation