Most notably the command to sacrifice Isaac. Another example would be the commission of false prophets and deceiving spirits (e.g. Ahab).
One of Jesus' reason for speaking in parables was to deceive. He also commanded followers to carry swords, not to use in combat, but for the purpose of deceiving combatants.
Didn't Jesus heal the soldiers ear, showing Now was the starting time to lay down the sword ?
- Matthew 26:51-53; Revelation 13:10
What was Jesus' New commandment at John 13:34-35 but to have self-sacrificing love for others as he had.
So, the purpose of carrying swords was to show everyone they would Not use them.
Weapons were Now going to be spiritual weapons for genuine ' wheat ' Christians - 2 Corinthians 10:4
True Christians would put on ' spiritual armor ' - Ephesians 6:11-17 - Not literal armor.
The purpose of Jesus' parables (illustrations) was so those illustrations would remain vivid in people's minds.
Jesus painted word pictures in people's minds so they could more easily recall the illustrations.
What do you find deceiving about Jesus' Sermon on the Mount ?
Was it deceit for God to ask Abraham to sacrifice Isaac because Abraham and Isaac both knew the promised ' seed ' (offspring) would come through Isaac. Isaac would have to be alive in order to produce offspring.
So, they were demonstrating their confidence in an earthly resurrection. Abraham knew Isaac would be brought back to life. Their actions show us how real the resurrection was to them.
As far as Ahab and commissioned false prophets could you please post what passages you have in mind ?