In what does a man's life consist?
Luke 12:15-21 And He said to them, "Take heed and beware of covetousness, for one’s life does not consist in the abundance of the things he possesses." 16 Then He spoke a parable to them, saying: "The ground of a certain rich man yielded plentifully. 17 And he thought within himself, saying, ‘What shall I do, since I have no room to store my crops?’ 18 So he said, I will do this: I will pull down my barns and build greater, and there I will store all my crops and my goods. 19 And I will say to my soul, Soul, you have many goods laid up for many years; take your ease; eat, drink, and be merry. 20 But God said to him, Fool! This night your soul will be required of you; then whose will those things be which you have provided? 21 So is he who lays up treasure for himself, and is not rich toward God.
This life is temporary, we bring nothing in and we can carry nothing out. Wealth acquired in this life cannot save us from death.
1 Timothy 6:7 For we brought nothing into this world, and it is certain we can carry nothing out.
Without God in our lives we are dead whilst we live. A man’s life, in the sense of eternal life, consists in his obedience to the word of God.
Matthew 4:4 But He answered and said, It is written, Man shall not live by bread alone, but by every word that proceeds from the mouth of God.
To be ‘rich towards God’ we must believe and obey the Gospel preached by Jesus Christ and his apostles. If we do this we will attain to eternal life at Christ’s return.
Jesus instructed his apostles:
Matthew 28:19,20 Go therefore and make disciples of all the nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, 20 teaching them to observe all things that I have commanded you; and lo, I am with you always, even to the end of the age.
John 3:16 For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.
1 John 5:12 He who has the Son has life; he who does not have the Son of God does not have life.
I hope you find this helpful.