'Certainly' in the Bible

See, O Yahweh, that {I am in distress}; {my stomach} is in torment, my heart has turned inside me because I have certainly rebelled. From outside a sword brings bereavement, inside the house [it is] like death.

All thine enemies have opened their mouth against thee: they hiss and gnash the teeth: they say, We have swallowed her up: certainly this is the day that we looked for; we have found, we have seen it.