Jeremiah 29:13

In seeking God we must search for him, by accomplishing and conducting a diligent search, a search for directions in seeking him and encouragements to our faith and hope.

¹³And ye shall seek me, and find me, when ye shall search for me with all your heart. (Jeremiah 29:13)

We must continue seeking, and take pains in seeking, as those that search; and this we must do with our heart (that is, in sincerity and uprightness), and with our whole heart (that is, with vigour and fervency, putting forth all that is within us in prayer), and those who thus seek God shall find him, and shall find him their bountiful rewarder.

⁶ But without faith it is impossible to please him: for he that cometh to God must believe that he is, and that he is a rewarder of them that diligently seek him. (Hebrews 11:6)

He never said to such, Seek you me in vain.

Seek and ye shall find