If we want to be truly wise we must give up trusting in ourselves and focus on Christ Who lives in us.
HOWEVER, we can only depend on Christ living in us if we have confessed our sinful nature and desire to be changed by Him into a new creation. When we have confessed to Him we are sinful and asked Him to change us into a new creation He does it and from then on He is the One Who works in us.
Ephesians 2:10
"10 For we are his workmanship, created in Christ Jesus for good works, which God prepared beforehand, that we should walk in them."
To be wise trust in Christ and not ourselves. Only He can make us wise. If we try to make ourselves wise we will be fools.
Proverbs 12:15-19
"15 The way of a fool is right in his own eyes,
But a person who listens to advice is wise.
16 A fool’s anger is known at once,
But a prudent person conceals dishonor.
17 One who declares truth tells what is right,
But a false witness, deceit.
18 There is one who speaks rashly like the thrusts of a sword,
But the tongue of the wise brings healing.
19 Truthful lips will endure forever,
But a lying tongue is only for a moment."
Isaiah 5:21
"Woe to those who are wise in their own eyes, and shrewd in their own sight!"
Proverbs 26:12
"Do you see a man who is wise in his own eyes? There is more hope for a fool than for him."
