Isaiah 65:16

16 Whoever invokes a blessing in the land will do so by the one true God; whoever takes an oath in the land will swear by the one true God. For the past troubles will be forgotten and hidden from my eyes.

Read Isaiah 65:16 Using Other Translations

That he who blesseth himself in the earth shall bless himself in the God of truth; and he that sweareth in the earth shall swear by the God of truth; because the former troubles are forgotten, and because they are hid from mine eyes.
So that he who blesses himself in the land shall bless himself by the God of truth, and he who takes an oath in the land shall swear by the God of truth; because the former troubles are forgotten and are hidden from my eyes.
All who invoke a blessing or take an oath will do so by the God of truth. For I will put aside my anger and forget the evil of earlier days.