'Seek' in the Bible

And I tell you, ask and it will be given to you; seek and you will find; knock and it will be opened for you.

For all the nations of the world seek after these [things], and your Father knows that you need these [things].

But seek his kingdom and these [things] will be added to you.

"Make every effort to enter through the narrow door, because many, I tell you, will seek to enter and will not be able to,

For the Son of Man came to seek and to save those who are lost."