Blessing our children and our families is an act of faith.  It was an act of faith for Jacob.  It’s an act of faith on our part as well.

[21] By faith Jacob, when dying, blessed each of the sons of Joseph, bowing in worship over the head of his staff.
(Hebrews 11:21 ESV)

Blessing others is an act of faith because it requires speaking about an encouragement of a future you cannot see with your physical eyes (See Genesis 48:20f).  God desires that we would have eyes to see those things He wants us to believe about Him in other people’s lives.  And not only see it but to speak that blessing of the Lord into their lives as well.  How about you?  Are you seeking God about the future of your family?  Are you allowing His future to be an encouragement to your children and/or your grandchildren?

[18] as we look not to the things that are seen but to the things that are unseen. For the things that are seen are transient, but the things that are unseen are eternal.  (2 Corinthians 4:18 ESV)

[7] …for we walk by faith, not by sight.  (2 Corinthians 5:7 ESV)