"Sons are a heritage from the Lord, children a reward from Him..."
Psalm 127:3   (Notice it says children, not just sons.)
And the Amplified Bible says,
"Happy, blessed and fortunate is the man whose quiver is filled with  them!.." Vs. 5

How blessed we are that God has given us the privilege to being parents! It is a role that cannot be taken lightly or lived according to man's scheme. Ephesians 6:1-4 speaks of how parents and children should relate to one another and it is important to note here.
"Children obey your parents in the Lord, for this is right. 'Honor your father and mother' which is the first commandment with promise: 'that it may be well with you and you may live long on the earth.'" Vs. 1-3 Vs. 4 in the Amplified Bible says, "Fathers, do not irritate and provoke your children to anger [do not exasperate them to resentment, but rear them [tenderly] in the training and discipline and counsel and admonition of the Lord."

Fathers are to train, discipline, counsel and admonish tenderly. This is not a quick process, but an ongoing work just as our heavenly Father tenderly trains and disciplines each one of us. As we are, so are they: works in progress!

Proverbs gives us wonderful examples of a father counseling and admonishing a son (daughters included).

The following are some Proverb examples -- included here are just some beginning verses, but please read them in context for the whole teaching:
"Listen, my son, to your father's instruction and do not forsake your mother's teaching. They are a garland to grace your head and a chain to adorn your neck." 1:8-9

1:10 gives a serious warning -- as we know, today, there are many enticements aimed at our children!
"My son, if sinful men entice you, do not give in to them." (See vs. 10-19)

"Make your ear attentive to wisdom,
Incline your heart to understanding;
For if you cry for discernment,
Lift your voice for understanding;
If you seek her [Wisdom] as silver,
And search for her as for hidden treasure; Then you will discern the fear of the Lord, And discover the knowledge of God." 2:2-5

"My son, do not forget my teaching,
But let your heart keep my commandments; Do not let kindness and truth leave you, Bind them around your neck.
Write them on the tablet of your heart.
So you will find favor and good repute
In the sight of God and man." 3:1, 3-4

"...Keep sound wisdom and discretion,
So they will be life to your soul...
Then you will walk in your way securely, And your foot will not stumble." 3:21-23

4:3-9 is very precious as the father is telling his son of the instruction he received from his own father when he was young. Read the whole chapter it is a father's advice to live well by following Wisdom!

The first 8 or 9 chapters of Proverbs are filled with the teaching of children. It is a wonderful place to spend some time especially for parents and grandparents. Children today need all the tender love, instruction and support they can get!

"Blessed are all who fear the LORD, who walk in His ways.
You will eat the fruit of your labor, blessing and prosperity will be yours.
Your wife will be like a fruitful vine within your house; your sons will be like olive shoots around your table.
Thus is the man blessed who fears the LORD.
May the LORD bless you from Zion all the days of your life and may you live to see your children's children." Psalm 128

Praise the Lord forever!

Blessings on this Father's Day.