If someone would have asked me what eternal life is; I would have told them it is living forever.
I heard a preacher say that was wrong. Jesus told us what eternal life was.
He said, "And this is eternal life, that they might know you (God the Father) and Jesus Christ whom you have sent." John 17:3
The preacher said eternal life is not a time-span.
Eternal life is a person.
I was at a family dinner one time and one of my son-in-laws asked me, "Do you know God, Belle?" I answered, "Yes." Then he asked everyone at the table, my daughters and their children, "Does she know God?" They said, "Yes."
But, now I would say, "I know him in a small way. I am learning about him and knowing him better day by day." Because what I thought I knew about God has grown and expanded from the day I gave my life to him when I was nineteen. And I won't fully know him until I am in heaven and can learn more and more of his love and goodness.
How can we know God? Read the Bible each day and tell God you want to know him. It's that simple, but also hard because we must persevere and not give up. ""You will seek Me and find Me when you search for Me with all your heart." Jeremiah 29:13
Thus says the LORD: “Let not the wise man boast in his wisdom, let not the mighty man boast in his might, let not the rich man boast in his riches, but let him who boasts boast in this, that he understands and knows me, that I am the LORD who practices steadfast love, justice, and righteousness in the earth. For in these things I delight, declares the LORD.” Jeremiah 9:23-24
"I will give them a heart to know that I am the LORD, and they shall be my people and I will be their God, for they shall return to me with their whole heart." Jeremiah 24:7
"And they shall not teach, each one his neighbor and each one his brother, saying, ‘Know the Lord,’ for they shall all know me, from the least of them to the greatest." Hebrews 8:11
"If you had known me, you would have known my Father also. From now on you do know him and have seen him.” John 14:7
"I am the good shepherd. I know my own and my own know me." john 10:14
"Jesus said to him, “Have I been with you so long, and you still do not know me, Philip? Whoever has seen me has seen the Father. How can you say, ‘Show us the Father’?" John 14:9