Psalms 4:5

³ But know that the LORD hath set apart him that is godly for himself: the LORD will hear when I call unto him.

⁴ Stand in awe, and sin not: commune with your own heart upon your bed, and be still. Selah.

Offer the sacrifices of righteousness, and put your trust in the LORD.

⁶ There be many that say, Who will shew us any good? LORD, lift thou up the light of thy countenance upon us.

⁷ Thou hast put gladness in my heart, more than in the time that their corn and their wine increased.

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

Hebrews 13:15–16
By him therefore let us offer the sacrifice of praise to God continually, that is, the fruit of our lips giving thanks to his name.
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Psalms 37:3
Trust in the LORD, and do good; so shalt thou dwell in the land, and verily thou shalt be fed.
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Psalms 51:19
Then shalt thou be pleased with the sacrifices of righteousness, with burnt offering and whole burnt offering: then shall they offer bullocks upon thine altar.
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Deuteronomy 33:19
They shall call the people unto the mountain; there they shall offer sacrifices of righteousness: for they shall suck of the abundance of the seas, and of treasures hid in the sand.
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1 Peter 4:19
Wherefore let them that suffer according to the will of God commit the keeping of their souls to him in well doing, as unto a faithful Creator.
Read in context
Psalms 62:8
Trust in him at all times; ye people, pour out your heart before him: God is a refuge for us. Selah.
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Matthew 5:23
Therefore if thou bring thy gift to the altar, and there rememberest that thy brother hath ought against thee;
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Psalms 50:14
Offer unto God thanksgiving; and pay thy vows unto the most High:
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