Parents have a Sacred Duty to Rear their Children in Love & Righteousness

No other success [in life] can compensate for failure in the home. -David O. McKay quoting J. E. McCulloch, “Home: the Savior of Civilization,” in Conference Report, Apr. 1935, p. 116

The most important of the Lord’s work you and I will ever do will be within the walls of our own home. -Harold B. Lee, Stand Ye in Holy Places, Salt Lake City: Deseret Book Co., 1974, p. 255

Motherhood is near to divinity. It is the highest, holiest service to be assumed by mankind. -in James R. Clark, comp., Messages of the First Presidency, 6 vols., Salt Lake City: Bookcraft, 1965–75, 6:178)

Having Children in Faith, Neil L. Anderson

Scriptures:

Train up a child in the way he should go: and when he is old, he will not depart from it. -Proverbs 22:6, Holy Bible

A new commandment I give unto you, That ye love one another; as I have loved you, that ye also love one another. -John 13:34, Holy Bible

And ye will not suffer your children that they go hungry, or naked; neither will ye suffer that they transgress the laws of God, and fight and quarrel one with another, and serve the devil, who is the master of sin, or who is the evil spirit which hath been spoken of by our fathers, he being an enemy to all righteousness. But ye will teach them to walk in the ways of truth and soberness; ye will teach them to love one another, and to serve one another. -Mosiah 4:14-15, Book of Mormon

Definitions:

duty - something that one is expected or required to do by moral or legal obligation; the respectful and obedient conduct due a parent, superior, elder, etc.
rear - to take care of and support up to maturity
love  - a feeling of warm personal attachment or deep affection, as for a parent, child, or friend.
righteousness - characterized by, proceeding from, or in accordance with accepted standards of morality, justice, or uprightness; virtuous.
-Dictionary.com