Ephesians 2:9-10

Long Ages Ago God Planned . . .

". . .we should spend these lives in helping others." Because of his kindness, you have been saved through trusting Christ. And even trusting is not of yourselves; it too is a gift from God.
Salvation is not a reward for the good we have done, so none of us can take any credit for it.
It is God himself who has made us what we are and given us new lives from Christ Jesus; and long ages ago he planned that we should spend these lives in helping others.
(TLB) Ephesians 2:8-10
Other Bible versions
For it is by grace you have been saved, through faith-- and this not from yourselves, it is the gift of God--
not by works, so that no one can boast.
For we are God's workmanship, created in Christ Jesus to do good works, which God prepared in advance for us to do.
(NIV) Eph 2:8-10
For by grace are ye saved through faith; and that not of yourselves: it is the gift of God:
Not of works, lest any man should boast.
For we are his workmanship, created in Christ Jesus unto good works, which God hath before ordained that we should walk in them.
(KJV) Eph. 2:8-10

"We who are strong ought bear with the failings of the 

weak and not to please ourselves. Each of us should please his
neighbor for his good, to build him up."
Rom 15:1-2

WHY HELP A STRANGER