Mt 6:33, Deut 6:5, 1 Cor 16:22, Heb 12:2, Phil 3:8-9
In the Old Testament, when the people of Israel sought God with all their will, God met them and gave them peace. (2 Chronicles 15:12-15)
2 Chronicles 15:12 And they entered into a covenant to seek the Lord God of their fathers with all their heart and with all their soul; 13 That whosoever would not seek the Lord God of Israel should be put to death, whether small or great, whether man or woman. 14 And they sware unto the Lord with a loud voice, and with shouting, and with trumpets, and with cornets. 15 And all Judah rejoiced at the oath: for they had sworn with all their heart, and sought him with their whole desire; and he was found of them: and the Lord gave them rest round about.
The Old Testament tells us to love God with all our heart. (Deut 6:5)
Deut 6:5 And thou shalt love the Lord thy God with all thine heart, and with all thy soul, and with all thy might.
We must seek the kingdom of God and Christ, the righteous of God. Then God will add all these things to us. (Mt 6:33)
Mt 6:33 But seek ye first the kingdom of God, and his righteousness; and all these things shall be added unto you.
We need to know more deeply that Jesus is the Christ. (Phil 3:8-9, Hebrews 12:2)
Phil 3:8 Yea doubtless, and I count all things but loss for the excellency of the knowledge of Christ Jesus my Lord: for whom I have suffered the loss of all things, and do count them but dung, that I may win Christ, 9 And be found in him, not having mine own righteousness, which is of the law, but that which is through the faith of Christ, the righteousness which is of God by faith:
Hebrews 12:2 Looking unto Jesus the author and finisher of our faith; who for the joy that was set before him endured the cross, despising the shame, and is set down at the right hand of the throne of God.