'Then I said, Here I am! I have come! In the Scroll of the Book it is written about Me (Yeshua). I have come to do Your Will'. - Psalm 40:7
The Bible Codes are a purported set of 'Secret Messages'/Word and/or Phrases encoded within the Text of the Bible. These 'Hidden Codes' have been described as a Method by which specific Letters from the Scriptures can be selected to reveal Hidden Word Combinations.
The Primary Method by which purportedly Meaningful Messages have been extracted is called the Equidistant Letter Sequence (ELS). To obtain an ELS from a Text, a Starting Point is chosen and then a Skip Number. Select Letters from the Text, at Equal Spacing determined by the Skip Number produces the 'Codes'. –from Wikipedia paraphrased