A third source of error is in the archaeologist's translation. His copy may be bad or his knowledge necessarily limited. Once a translation is ascertained to be accurate then the interpretation of it may be inaccurate. Too many conclusions may be based on too little information. One must always be ready to distinguish between fact and interpretation when comparing archaeological material with the Bible.
Excavators are human and sometimes have their own biases.
But so are Biblical translators, though the margin of error is far greater with the former than the latter, in modern times. Speaking of modern times and preconceived ideas being so dominant that they bias one, this story comes to light. Not to be outdone for want of evidence to the contrary, the Baptist asked him to look after his farm while he traveled to Jerusalem to see. His mission successfully accomplished, lie returned with a glowing report. The fact is, that the Mamilla Pool dates from Mediaeval times, but archaeologists agree that there were undoubtedly water reservoirs large enough to do the job even farther back than the time of Christ.