I Maccabees 10:16-26

16 He said, Shall we find such another man? now therefore we will make him our friend and confederate.
17 Upon this he wrote a letter, and sent it unto him, according to these words, saying,
18 King Alexander to his brother Jonathan sendeth greeting:
19 We have heard of thee, that thou art a man of great power, and meet to be our friend.
20 Wherefore now this day we ordain thee to be the high priest of thy nation, and to be called the king's friend; (and therewithal he sent him a purple robe and a crown of gold:) and require thee to take our part, and keep friendship with us.
21 So in the seventh month of the hundred and sixtieth year, at the feast of the tabernacles, Jonathan put on the holy robe, and gathered together forces, and provided much armour.
22 Whereof when Demetrius heard, he was very sorry, and said,
23 What have we done, that Alexander hath prevented us in making amity with the Jews to strengthen himself?
24 I also will write unto them words of encouragement, and promise them dignities and gifts, that I may have their aid.
25 He sent unto them therefore to this effect: King Demetrius unto the people of the Jews sendeth greeting:
26 Whereas ye have kept covenants with us, and continued in our friendship, not joining yourselves with our enemies, we have heard hereof, and are glad.

The Brenton translation of the Septuagint is in the public domain.