Mic 4:4, Mt 11:28, Jn 1:48-50, Jn 14:27, Rom 5:1, 2 Cor 5:18-19
In the Old Testaments, God said that He would invite us to the path of peace. (Zec 3:10, Mic 4:4)
Zec 3:10 In that day, saith the Lord of hosts, shall ye call every man his neighbour under the vine and under the fig tree.
Mic 4:4 But they shall sit every man under his vine and under his fig tree; and none shall make them afraid: for the mouth of the Lord of hosts hath spoken it.
Jesus gives us true rest. (Mt 11:28)
Mt 11:28 Come unto me, all ye that labour and are heavy laden, and I will give you rest.
Nathanael was thinking of the coming Christ under the fig tree. Jesus knew this and called Nathanael. Nathanael confessed that Jesus was the Son of God and the King of Israel. (John 1:48-50)
John 1:48 Nathanael saith unto him, Whence knowest thou me? Jesus answered and said unto him, Before that Philip called thee, when thou wast under the fig tree, I saw thee. 49 Nathanael answered and saith unto him, Rabbi, thou art the Son of God; thou art the King of Israel. 50 Jesus answered and said unto him, Because I said unto thee, I saw thee under the fig tree, believest thou? thou shalt see greater things than these.
Jesus, the Christ, has given us true peace. (John 14:27)
John 14:27 Peace I leave with you, my peace I give unto you: not as the world giveth, give I unto you. Let not your heart be troubled, neither let it be afraid.
We have been reconciled to God by believing that Jesus is the Christ, and we are able to reconcile people to God. (Romans 5:1, 2 Corinthians 5:18-19)
Romans 5:1 Therefore being justified by faith, we have peace with God through our Lord Jesus Christ:
2 Corinthians 5:18 And all things are of God, who hath reconciled us to himself by Jesus Christ, and hath given to us the ministry of reconciliation; 19 To wit, that God was in Christ, reconciling the world unto himself, not imputing their trespasses unto them; and hath committed unto us the word of reconciliation.