Hypocrites!

Lk 12:1 In the meantime, when an innumerable multitude of people had gathered together, so that they trampled one another, He began to say to His disciples first of all, "Beware of the leaven of the Pharisees, which is hypocrisy.
:2 For there is nothing covered that will not be revealed, nor hidden that will not be known.
:3 Therefore whatever you have spoken in the dark will be heard in the light, and what you have spoken in the ear in inner rooms will be proclaimed on the rooftops.
:4 And I say to you, My friends, do not be afraid of those who kill the body, and after that have no more that they can do.
:5 But I will show you who you should fear: Fear Him who, after He has killed, has power to cast into hell; yes, I say to you, fear Him!"
:6 Are not five sparrows sold for two copper coins? And not one of them is forgotten before God.
:7 But the very hairs of your head are all numbered. Do not fear therefore; you are of more value than many sparrows.

Hypocrites put on a show of righteousness while hiding sinful thoughts and actions. Christ warned His disciples and us that secret sin will someday be fully exposed.

Yeast may be a blessing in a bakery, but it can also remind us to guard our heart against sin.

Num 32:23 But if you do not do so, then take note, you have sinned against the Lord; and be sure your sin will find you out.

2 Pet 1:5 But also for this very reason, giving all diligence, add to your faith virtue, to virtue knowledge,

Your goal must be to get a little more faith each day, to build on the previous day and to learn from its failures .