'Word' in the Bible

that ye be not soon shaken in mind, nor troubled, neither by spirit, nor by word, nor by letter, as if it were by us, as that the day of the Lord is present.

So then, brethren, stand firm, and hold fast the instructions which ye have been taught, whether by word or by our letter.

encourage your hearts, and establish you in every good work and word.

For the rest, brethren, pray for us, that the word of the Lord may run and be glorified, even as also with you;

But if any one obey not our word by the letter, mark that man, and do not keep company with him, that he may be ashamed of himself;