What is the meaning of Acts 18:27?

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

When Apollos resolved to cross over to Achaia, the brothers encouraged him and wrote to the disciples there to welcome him. On his arrival, he was a great help to those who by grace had believed.

Berean Standard Bible (BSB)

When he had determined to pass over into Achaia, the brothers encouraged him, and wrote to the disciples to receive him. When he had come, he greatly helped those who had believed through grace;

World English Bible (WEB)

And{G1161} when he{G846} was disposed{G1014}{(G5740)} to pass{G1330}{(G5629)} into{G1519} Achaia{G882}, the brethren{G80} wrote{G1125}{(G5656)}, exhorting{G4389}{(G5671)} the disciples{G3101} to receive{G588}{(G5664)} him{G846}: who{G3739}, when he was come{G3854}{(G5637)}, helped them{G4820}{(G5639)} much{G4183} which had believed{G4100}{(G5761)} through{G1223} grace{G5485}:

Strong's King James

(27) Now he wanted to go across to Achaia (Trouble; Wailing), the brothers encouraged him and wrote to the disciples to welcome him. When he arrived, this helped greatly through the favourable-grace those believing,

The F.O.G*

[27] When Apollos felt called to minister in Achaia, the Ephesian believers encouraged him and wrote letters of introduction to the disciples there. Upon arriving, he proved to be a tremendous blessing to those who had embraced faith through God's grace.

The F.O.G Paraphrase

and he being minded to go through into Achaia, the brethren wrote to the disciples, having exhorted them to receive him, who having come, did help them much who have believed through the grace,

Young's Literal Translation