The most important part of a house is not what the eyes can see. By far, the most important part of any house is a firm foundation. Otherwise, the house is subject to many hazards. So it is with your faith. There must be a firm foundation or it will not stand the test of time. Consider the foundation of your faith.
The solid foundation for the people of God is Holy Scripture. The Bible is built upon the testimony of the apostles and the prophets, with Jesus Christ as the chief cornerstone. Jesus based His ministry and teaching upon the words of the prophets recorded in the Old Testament. He opened the eyes of His disciples to the Scriptures. "You have known the Holy Scriptures, which are able to make you wise for salvation through faith which is in Christ Jesus" (2 Timothy 3:15).
True faith is found as a gift of the Holy Spirit, based upon the Word of God in the Bible. It is a solid foundation. All Scripture is inspired by the Holy Spirit. It is Holy Scripture because of the Holy Spirit. Our faith stands upon a firm foundation. Faith based upon anything else cannot survive the test of time and trial. "But the word of our God stands forever" (Isaiah 40:8).
Your faith will be challenged by the world. It will be tested by the tempter. It will be mocked by the scoffer. It will be threatened by life situations. Nevertheless, faith's firm foundation will not change with the times, break under pressure, nor crumble into doubt and unbelief. Faith is a gift of God upon a constant, firm foundation. Faith stands upon the truth of God. "So then faith comes by hearing, and hearing by the word of God" (Romans 10:17).
