Immovable foundations are set before the tribulation comes.
A) Matthew 7:15 Beware of false prophets for your immovable Foundation
B) Matthew 7:18 -10 Galations 6:7-9 Produce good fruit for your Immovable Foundation
C) Matthew 7:23-27 Romains 8:35 Build your faith on the promises of God and not on worldly information platform to establish your immovable Foundation.
The beliefs upon which you lay your foundation will determine the strength of the structure that is built upon it. It does not matter the cost and quality of the building materials used, for a house built on sand is only as strong as that sand. Nothing can separate us from the love of God.
Therefore, my beloved brothers, be steadfast, immovable always abounding in the work of the Lord, knowing that in the Lord your labor is not in vain.