John Gills Exposition of the Bible Commentary - Esther 2:23
And when inquisition was made of the matter, it was found out ,.... That these two men had entered into a conspiracy to take away the king's life; full proof and evidence were given of it: therefore they were both hanged on a tree ; Josephus F5 Ibid. (Antiqu. l. 11. c. 6. sect. 4.) says they were crucified; but hanging was frequent among the Persians, as Grotius observes, and better agrees with the word here used: and it was written in the book of the chronicles before the king ... read more
Matthew Henry's Complete Commentary - Esther 2:21-23
This good service which Mordecai did to the government, in discovering a plot against the life of the king, is here recorded, because the mention of it will again occur to his advantage. No step is yet taken towards Haman's design of the Jews? destruction, but several steps are taken towards God's design of their deliverance, and this for one. God now gives Mordecai an opportunity of doing the king a good turn, that he might have the fairer opportunity afterwards of doing the Jews a good turn.... read more