Why is there no cross-reference to Deut 5:9-10 on the loving nature of God the Father , in the New Testament?

We read in Deut 5:9-10 : > ..for I, the Lord your God, am a jealous God, punishing the children for the sin of the parents to the third and fourth generation of those who hate me, but showing love to a thousand generations of those who love me and keep my commandments. We see the Lord restricting the punishment for disobeying His Commandments to the third and the fourth generation of the defaulter, but expanding the scope of reward for obeying them to a thousand generations ! We do not see any cross-reference to the above verses, in the New Testament. Of course, Jesus reminds his people of the generosity of God the father when he says: > Do not judge, and you will not be judged. Do not condemn, and you will not be condemned. Forgive, and you will be forgiven. Give, and it will be given to you. A good measure, pressed down, shaken together, and running over will be poured into your lap. For with the measure you use, it will be measured back to you.” (Lk 6:37) And Jesus goes beyond the Ten Commandments when he says: > A new command I give you: Love one another. As I have loved you, so you must love one another (Jn 13:34) . My question therefore, is: Why is there no cross-reference to Deut 5:9-10 on the loving nature of God the Father , in the New Testament ?