Taste and see that the Lord is good;
    blessed is the one who takes refuge in him.
9 Fear the Lord, you his holy people,
    for those who fear him lack nothing.
10 The lions may grow weak and hungry,
    but those who seek the Lord lack no good thing. NIVUK

David’s experience is encapsulated in verse 8. He had ‘tasted’ and ‘seen’ and he encouraged others to do the same.

Notice that to ‘fear’ the Lord, and to ‘seek’ Him are two sides of the same coin. This is a reverential fear that takes God seriously, believes in His awesome reality and takes Him at His Word. It therefore inevitably involves seeking Him.

Verses 9,10 are not the basis for ‘prosperity teaching’, but they do underline a truth that those who trust God’s promises have proved (often many times over): namely that His provision is remarkable, miraculous and timely. (Tom Hale comments that these two verses are the equivalent to Jesus’ teaching in Matt.6:33. If we ‘seek first’ God’s Kingdom and righteousness we will have all we need).

”For the Lord God is a sun and shield;
    the Lord bestows favor and honor;
no good thing does he withhold
    from those whose walk is blameless.” Psalm 84:11NIV