'Until' in the Bible

So we have the prophetic word made more certain. You do well to pay [close] attention to it as to a lamp shining in a dark place, until the day dawns and light breaks through the gloom and the morning star arises in your hearts.

then [in light of the fact that all this is true, be sure that] the Lord knows how to rescue the godly from trial, and how to keep the unrighteous under punishment until the day of judgment,

But by His word the present heavens and earth are being reserved for fire, being kept for the day of judgment and destruction of the ungodly people.