2 Bible Verses about eternal life, experience of

Now this is the testimony, that God has given to us eternal life: and this life is in his Son. He who has the Son, has this life; he who has not the Son of God, has not this life. These things I have written to you, that you may know that you have eternal life-that you may continue to believe on the name of the Son of God.

Wherefore, the rather, brethren, earnestly endeavor to make your calling and election sure; for doing these things, you shall never fall; and thus there shall be richly ministered to you, an entrance into the everlasting kingdom of our Lord and Saviour Jesus Christ.