They state celebrating is wrong due to the fact the first account is pharaoh celebrating his birthday.
The first account is in Genesis. Pharaoh, the Egyptian king, celebrated his birthday by executing his chief baker (Gen. 40:1-23). God gave Joseph special understanding of a dream by Pharaoh’s butler and baker, that the baker would lose his life three days after Joseph interpreted the dream. Joseph understood that Pharaoh would use this occasion—his own birthday party—to put his baker to death. As the dream had foretold, the baker was hung at the party.
In the second account, the New Testament figure Herod the tetrarch reluctantly ordered the beheading of John the Baptist (Matt. 14:3-11). Notice verse six: “But when Herod’s birthday was kept…” During the dancing and merry-making at his birthday party, Herod got carried away and eventually made a promise that he did not want to keep. As a result, a great servant of God lost his life.
The final account is found in the book of Job. The Bible says that Job’s seven sons “went and feasted in their houses, every one his day; and sent and called for their three sisters to eat and to drink with them” (Job 1:4). These parties were obviously not centered around any kind of celebration related to God, or Job would not have worried that his children may have sinned during these celebration feasts. He was not exactly sure what was going on in their minds, but the very celebration of their birthdays triggered great concern in him (1:5). Apparently, during the birthday party of Job’s oldest son, God allowed Satan to kill all 10 of Job’s children through what appears to be a tornado (vs. 6-13, 18-19).
Further proof that these birthday celebrations displeased God is found in Job 3. Take time to read the entire chapter carefully. Job spends much time cursing every aspect of the day of his birth. The loss of all of his children, due to a birthday celebration, stunned and sobered him. His words make plain that there is nothing good about the day of a man’s birth. He openly cursed the day he was born. This will be shown to have greater meaning later in this article.