As we carefully consider the moral application of a similar procedure, we find certain interesting insights with which it is worth wrestling. First, we cannot simply say that a righteous man (or woman) will automatically produce righteous offspring “after their kind.” However, a righteous person will exercise an influence that tends to produce “fruit after their kind.” Again, this is not the “cause and effect” procedure seen in the physical realm. We can see this concept referred to and dealt with in a passage as Ezekiel 18.
The next dimension to consider regarding the moral dynamic of producing “fruit” involves the challenge of cleansing what is impure in comparison to defiling what is pure. Consider the prophetic proclamation found in Haggai 2:11-13, “Thus says the Lord of hosts, ‘Ask now the priests for a ruling: If a man carries holy meat in the fold of his garment, and touches bread with this fold, or cooked food, wine, oil, or any other food, will it become holy?’ And the priests answered and said, ‘No.’ Then Haggai said, ‘If one who is unclean from a corpse touches any of these, will the latter become unclean?’ And the priests answered and said, ‘It will become unclean.’” The basic emphasis in this statement is that it is easier to produce defilement than to cleanse and correct defilement. Touching something unclean with something clean does not produce cleansing. Touching something clean with something unclean does produce defilement. This is a physical analogy that, when applied to man’s moral condition, must be handled with appropriate sensitivity and care. Neither the morally defiled nor the morally pure are automatically altered by exposure to one another. However, it appears, by the intention of these words and by practical experience, that, sadly, it is more challenging for the morally pure to produce “fruit after their kind” than for the morally impure to “fruit after their kind.”
Recognizing this fact, sheds very intense light on God’s reaction in Genesis 6:5-6 where it reads, “Then the Lord saw that the wickedness of man was great on the earth, and that every intent of the thoughts of his heart was only evil continually. And the Lord was sorry that He had made man on the earth, and He was grieved in His heart.” God did not, at all, take the realization of man’s condition and what would be involved in dealing with this great defilement lightly. I am amazed when seeing pockets of people within the church assuming that simply “touching” the unclean with a positive, uplifting message will make them clean. This type of undiscerning, immature underestimation will prove destructive and, even, deadly. Moral defilement must not be taken lightly!
 This is not to suggest that, through experimentation and crossbreeding, such arrangements cannot be tampered with and altered.