I will bless those who bless you, And the one who curses you I will curse.

Genesis 12 
Now the Lord said to Abram,

“Go forth from your country,
And from your relatives
And from your father’s house,
To the land which I will show you;
2 And I will make you a great nation,
And I will bless you,
And make your name great;
And so you shall be a blessing;
3 And I will bless those who bless you,
And the one who curses you I will curse.
And in you all the families of the earth will be blessed.”