Charles Ellicott Commentary 2 Kings 19:6

"And Isaiah said unto them, Thus shall ye say to your master, Thus saith Jehovah, Be not afraid of the words that thou hast heard, wherewith the servants of the king of Assyria have blasphemed me." — 2 Kings 19:6 (ASV)

The servants. —Or, attendants. The word is more specific in meaning than servant, apparently denoting personal attendant. Delitzsch renders it “squires.” (Compare 2 Kings 4:12; 2 Kings 5:20; 2 Kings 8:4; Exodus 33:11; Judges 7:10; 2 Samuel 9:9; 1 Kings 20:15.)

Blasphemed. —It is not from the same root as the word in 2 Kings 19:3. (Psalms 44:16; Isaiah 51:7; Numbers 15:30.)