7 so that, having been justified by his grace, we might become heirs having the hope of eternal life.

Read Titus 3:7 Using Other Translations

That being justified by his grace, we should be made heirs according to the hope of eternal life.
so that being justified by his grace we might become heirs according to the hope of eternal life.
Because of his grace he declared us righteous and gave us confidence that we will inherit eternal life.