Computer programmers like to reuse code. Actually, once a module has been debugged and tested they can find new uses for it. For example a module for graphics display designed for an arcade game may later be used by an accounting program.
However, no one says that because some of the code is the same that the accounting program used to be a game. Or that through programming mistakes known as bugs or computer errors, it slowly evolved into an accounting program.
Fact is that people see similar code as a sign that the designer is the same. It is like when you read a book and notice it was written by the same author as another book you read previously. That is because the "voice" is the same.
We often find similarities in the various works of a great architect or painter. Each one has his or her own unique style. The fact that they are all similar points to one author. For example, it is rumored that humans share 70% of our gene code with sea sponges. This could be evidence that the author of both is the same. I do not see any evidence that we evolved from a sponge.
On the right we present three examples given in the Bible showing how God prefers to reuse the old, rather than create anew.
First example: God took a rib from Adam to make Eve.
And the LORD God caused a deep sleep to fall upon Adam, and he slept: and he took one of his ribs, and closed up the flesh instead thereof;
And the rib, which the LORD God had taken from man, made he a woman, and brought her unto the man.
Second example: In the time of the prophet Elisha, God was able to multiply oil for a poor widow.
2 Kings 4:1-7
Now the wife of one of the sons of the prophets cried to Elisha, "Your servant my husband is dead, and you know that your servant feared the LORD, but the creditor has come to take my two children to be his slaves." And Elisha said to her, "What shall I do for you? Tell me; what have you in the house?" And she said, "Your servant has nothing in the house except a jar of oil." Then he said, "Go outside, borrow vessels from all your neighbors, empty vessels and not too few. Then go in and shut the door behind yourself and your sons and pour into all these vessels. And when one is full, set it aside." So she went from him and shut the door behind herself and her sons. And as she poured they brought the vessels to her. When the vessels were full, she said to her son, "Bring me another vessel." And he said to her, "There is not another." Then the oil stopped flowing. She came and told the man of God, and he said, "Go, sell the oil and pay your debts, and you and your sons can live on the rest."
Third example: Christ multiplied the bread and fishes to feed a large crowd.
As he got out he saw the large crowd, and he had compassion on them and healed their sick. 15 When evening arrived, his disciples came to him saying, "This is an isolated place and the hour is already late. Send the crowds away so that they can go into the villages and buy food for themselves." 16 But he replied, "They don't need to go. You give them something to eat." 17 They said to him, "We have here only five loaves and two fish." 18 "Bring them here to me, " he replied. 19 Then he instructed the crowds to sit down on the grass. He took the five loaves and two fish, and looking up to heaven he gave thanks and broke the loaves. He gave them to the disciples, who in turn gave them to the crowds. 20 They all ate and were satisfied, and they picked up the broken pieces left over, twelve baskets full. 21 Not counting women and children, there were about five thousand men who ate.