Psalm 119:111 (ESV): Your statutes are my heritage forever; they are the joy of my heart.
God’s Word is the one thing I can invest in that is eternal. I know the “lay up treasures” verse isn’t exactly talking about The Word, but it still applies. If my goal is to get ready for eternity, then I should practice today what I will be doing a thousand years from now – obey whatever God says, fully and forever.
God’s Word IS my heritage forever! Unlike a trust, which can be broken and the money done away with, God’s Word will never “run out” and cannot be taken away from me. Even were armed men to come in and remove every Bible from my home. The Word I have planted in my heart is THERE, and there it will remain, providing a continual return on my investment.