God first places us upon and builds us up on the foundation of Christ, which are all His ways/truths/teachings. Once we’re built up on that foundation, He tests us with lies to see if we’ll stand firm in the ways He’s taught us, and won’t succumb to and be persuaded by the lies.
It helps us to:
- Grow more confident in His ways.
- Grow a stronger conscience, knowing what we do and say in Christ (in the ways of God) are the correct things.
- Gives us greater discernment to be able to detect and approve the things that are good (the ways of God) and to be able to detect and reject the lies.
God even tested Jesus Himself by sending Him into the wilderness for 40 days to be tested by Satan with the lies of the lust of the flesh, the lust of the eyes and the pride of life before He could be approved for His ministry, to see if He was ready.