Jeremiah 17:5-8 ESV
5 Thus says the Lord:
“Cursed is the man who trusts in man
and makes flesh his strength,
whose heart turns away from the Lord.
6 He is like a shrub in the desert,
and shall not see any good come.
He shall dwell in the parched places of the wilderness,
in an uninhabited salt land.
7 “Blessed is the man who trusts in the Lord,
whose trust is the Lord.
8 He is like a tree planted by water,
that sends out its roots by the stream,
and does not fear when heat comes,
for its leaves remain green,
and is not anxious in the year of drought,
for it does not cease to bear fruit.”
Matthew 7:15-20 ESV
15 “Beware of false prophets, who come to you in sheep's clothing but inwardly are ravenous wolves. 16 You will recognize them by their fruits. Are grapes gathered from thornbushes, or figs from thistles? 17 So, every healthy tree bears good fruit, but the diseased tree bears bad fruit. 18 A healthy tree cannot bear bad fruit, nor can a diseased tree bear good fruit. 19 Every tree that does not bear good fruit is cut down and thrown into the fire. 20 Thus you will recognize them by their fruits.
Deuteronomy 13:1-3 ESV
“If a prophet or a dreamer of dreams arises among you and gives you a sign or a wonder, 2 and the sign or wonder that he tells you comes to pass, and if he says, ‘Let us go after other gods,’ which you have not known, ‘and let us serve them,’ 3 you shall not listen to the words of that prophet or that dreamer of dreams. For the Lord your God is testing you, to know whether you love the Lord your God with all your heart and with all your soul.
Matthew 16:12 ESV
12 Then they understood that he did not tell them to beware of the leaven of bread, but of the teaching of the Pharisees and Sadducees.
1 John 4:1-3a ESV
Beloved, do not believe every spirit, but test the spirits to see whether they are from God, for many false prophets have gone out into the world. 2 By this you know the Spirit of God: every spirit that confesses that Jesus Christ has come in the flesh is from God, 3 and every spirit that does not confess Jesus is not from God.
2 Timothy 4:3-4 ESV
3 For the time is coming when people will not endure sound teaching, but having itching ears they will accumulate for themselves teachers to suit their own passions, 4 and will turn away from listening to the truth and wander off into myths.
Luke 3:11-14 ESV
11 And he answered them, “Whoever has two tunics is to share with him who has none, and whoever has food is to do likewise.” 12 Tax collectors also came to be baptized and said to him, “Teacher, what shall we do?” 13 And he said to them, “Collect no more than you are authorized to do.” 14 Soldiers also asked him, “And we, what shall we do?” And he said to them, “Do not extort money from anyone by threats or by false accusation, and be content with your wages.”
John 15:8 ESV
8 By this my Father is glorified, that you bear much fruit and so prove to be my disciples.