Let him who thinks he stands take heed lest he fall.

1 Corinthians 10:12-13 NKJV

Therefore let him who thinks he stands take heed lest he fall. [13] No temptation has overtaken you except such as is common to man; but God is faithful, who will not allow you to be tempted beyond what you are able, but with the temptation will also make the way of escape, that you may be able to bear it.

My personal story

 Psalm 40:2 NKJV

He also brought me up out of a horrible pit, Out of the miry clay, And set my feet upon a rock, And established my steps.

Parable of the lost coin

 Luke 15:8-10 CSB

"Or what woman who has ten silver coins, if she loses one coin, does not light a lamp, sweep the house, and search carefully until she finds it? [9] When she finds it, she calls her friends and neighbors together, saying, 'Rejoice with me, because I have found the silver coin I lost!' [10] I tell you, in the same way, there is joy in the presence of God's angels over one sinner who repents."

Every Word of God is pure

 Proverbs 30:5-6 KJV

Every word of God is pure: he is a shield unto them that put their trust in him. [6] Add thou not unto his words, lest he reprove thee, and thou be found a liar.