Some of my favorites:
FORGIVENESS
Luke 32:34 "Then said Jesus, Father, forgive them; for they know not what they do."
--I like this scripture because of what it represents. The soul of the ministry of Christ was that of love and forgiveness. Here, while experiencing the agony of hanging on the cross, he shows us an example of amazing charity as he prays for very men who were killing him.
Second Corinthians Chapter two (particularly verses seven and ten.)
--This chapter is Paul explaining a little of the doctrine of forgiveness. He talks about not using our love to motivate others to guilt, and about forgiving others in the same way that we are forgiven through Christ. Paul can be a little hard to read, though.
Colossians 3:13 "Forbearing one another, and forgiving one another, if any man have a quarrel against any: even as Christ forgave you, so also do ye."
--Like the earlier one, but stated in a more concise form.
LOVE
1 John 4:7 "Beloved, let us love one another: for love is of God; and every one that loveth is born of God, and knoweth God."
--beautiful little scripture that pretty much sums it up, I think.
John 17:23: "I in them, and thou in me, that they may be made perfect in one; and that the world may know that thou hast sent me, and hast loved them, as thou hast loved me."
--Using love as an example. This is kind of a commandment to the people of god to be known as loving, so that people will know where to go to find the truth.
MARRIAGE
The bible, particularly the New Testament, doesn't actually have that much to say about marriage. There are a few scriptures where Paul says that it is good for a person dedicated to the ministry to not get married. The Catholics use this as their basis for a celibate clergy; the rest of us think that Paul was referring to specific individuals who were called on specific missions, during which they should not be thinking about marriage or other concerns.
There are several scriptures that refer to how a man should lead in the home, and the Old Testament is rife with Law of Moses commandments regarding marriage. If you want something more pertinent to our current world, however, you'll have to be willing to take some scriptures with an LDS perspective.
Ephesians Chapter 5:25-33
--This is the famous "Husbands, love your wives" passage. Essentially, it tells a husband to treat his wife as Christ himself treated the church. It's a beautiful passage, and talks about marriage and family as a basic unit of the Gospel.
Matt 19:6 "Wherefore they are no more twain, but one flesh. What therefore God hath joined together, let not man put asunder."
--Also pretty famous, this is the scripture that talks about man and woman becoming one. (It's spoken of in other places.) This is also one of the scriptures interpreted in LDS doctrine to refer to eternal marriage.
That's the best I can do without more context, Jerry. (Or without pulling from LDS scripture. ) If you let me know a little more narrowly what you're looking for, perhaps I can find some other passages.