9 Bible Verses about Sure Knowledge

And Zacharias said to the angel, "How will I know this? For I am an old man and my wife is [also] very old."

One person regards a certain day more important than another; the next person regards every day alike. Each person should be fully convinced in his own mind [i.e., concerning their relative importance].

The message about Christ has become firmly established there among you [i.e., by such gifts],

for our Gospel came to you, not merely in words, but also in power, in [a demonstration of] the Holy Spirit [See I Cor. 2:4] and with ["our" or "your"] deep conviction [of its truth]. You people know what kind of men we were while living among you for your benefit.

Now, [having] faith is being sure of [receiving] what is hoped for, and certain [of the existence] of what is not visible.

For God does not change His mind about the gifts He gives and the people He calls [to Him].

"It will be too bad for the world because of occasions that cause people to fall away [from God]! For it is inevitable that such occasions come, but it is too bad for that person who is responsible for causing it to happen.

Since no one can [really] say anything against these things, just calm down and do not do anything foolish.

[We say this] because we have such confidence in God through [our relationship with] Christ.