But they that wait upon the Lord shall renew their strength; they shall mount up with wings as eagles;
they shall run, and not be weary; and they shall walk, and not faint.   
Isaiah 40:31 KJV

And ye shall seek me, and find me, when ye shall search for me with all your heart!
Jeremiah 29:13 KJV

For thus saith the Lord God, Behold, I, even I, will both search my sheep, and seek them out.
Ezekiel 34:11 KJV

Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me. 
John 5:39 KJV