Jesus said: “But seek first the kingdom of God and His righteousness, and all these things shall be added to you” (Matthew 6:33).

From Isaiah: “I have not spoken in secret,
In a dark place of the earth;
I did not say to the seed of Jacob,
‘Seek Me in vain’;
I, the LORD, speak righteousness,
I declare things that are right” (Isaiah 45:19).

Amplified versions:
Jesus said: “But first and most importantly seek (aim at, strive after) His kingdom and His righteousness [His way of doing and being right—the attitude and character of God], and all these things will be given to you also” (Matthew 6:33).

From Isaiah: “I have not spoken in secret, In a corner of a land of darkness; I did not say to the descendants of Jacob, ‘Seek Me in vain [with no benefit for yourselves].’ I, the LORD, speak righteousness [the truth—trustworthy, a straightforward correlation between deeds and words], Declaring things that are upright” (Isaiah 45:19).