Personally if i was asked what should be the greatest gift a parent can pass to their children as a legacy i would say it is their faith, cause everything in life builds around it, Faith is the anchor or stronghold of christianity, Christianity is not a religion it is a way of life, it is our lifestyle, a lifestyle modeled after christ, so are we Called christians, ...faith is a necessity in this kingdom for without it no man can please God or talk of receiving anything from God.
I feel as young people still single, now is the time to build a life of faith, a prayer life of faith, be committed in church serving God on a unit, be devoted serving, because a time a time will come when you are married and a lot of responsibility will eat up your time, by then you will be so busy working or taking good care of the kids, what virtue what will be the faith that you can pass to your children, what will you teach them to grow in the ways of the lord, when you didn't store enough of Gods word in you...
Romans 10:17 says Faith cometh by hearing Gods word, what that means is that we grow our faith when we not only hear but also spend time to meditate on the word of God, when our faith is build up we can with stand any force of temptation any dart thrown at us from the wicked forces of darkness, also Gods word to us is our spiritual meal, because we are made up of a spirit, soul and body and as God says in john 6:63
The C part of that verse says the word i speak to you they are spirit and they are life, when we hear and meditate on the word of God we are feeding our spirit man and by so doing we are building our faith more and more in God.
The bible says train up a Child in the way he should go so when he is old he will not depart from it, as a parent it is your ultimate duty to train up your child, it is a duty God expect you to do, your child will likely go the way of the lord if you teach them early enough, it is what God demand of you to do and also to the young couple or single men amd women out there now you have enough time to groom yourself in the word of God so you have something to pass unto your children