'Sure' in the Bible

He had also, after He suffered, shown Himself alive to them with many sure proofs, appearing to them at intervals during forty days, and speaking of the Kingdom of God.

but in every nation the person who fears God and does what is right [by seeking Him] is acceptable and welcomed by Him.

Then Peter came to himself and said, "Now I'm sure that the Lord has sent his angel and rescued me from Herod and from everything the Jewish people were expecting!"

And as concerning that he raised him up from the dead, now no more to return to corruption, he said on this wise, I will give you the sure mercies of David.

What then ought you to do? They are sure to hear that you have come to Jerusalem;

And those who were with me saw the light, to be sure, but did not understand the voice of the One who was speaking to me.

And a light breeze from the south sprang up, so that they supposed they were now sure of their purpose. So weighing anchor they ran along the coast of Crete, hugging the shore.