It is the Spirit who gives life; the flesh profits nothing. The words that I speak to you are spirit, and they are life. John 6:63
Moses made an observation in Psalm 90:10 about the children of Israel, noting they were living to be 70 and if they were strong they lived to be 80. This is not in agreement with Genesis 6:3 where God says, “My Spirit shall not strive with man forever, for he is indeed flesh; yet his days shall be one hundred and twenty years.” How do these scriptures work together? The answer can be found in John 6:63. It is the Spirit who gives life. We are indeed flesh and the flesh profits nothing. We know from the Word that the children of Israel were walking according to the flesh. They murmured, complained, made idols, etc. Moses on the other hand was walking according to the Spirit and lived to be 120 (Deuteronomy 34:7). Romans 8:6 says, “For to be carnally minded is death, but to be spiritually minded is life and peace.”
There are several scriptures that mention a prolonging of our days if we follow the Word. Proverbs 3:1-2 says, “My son, do not forget my law, but let your heart keep my commands; For length of days and long life and peace they will add to you.” 1 Kings 3:14, Proverbs 10:27, Ephesians 6:2-3, Deuteronomy 5:33, and others echo the same message. So if we walk according to the flesh, we can expect 70-80 years. If we walk according to the Spirit, we can expect 120 years. It is the Spirit that gives life, and God’s Word is spirit and life according to John 6:63. God gives life. It is not God’s fault if you or someone else dies early. Picture a lamp in your house. Do you call the electric company if one of your lamps doesn’t turn on? No! You check the bulb, and make sure it is plugged in. The electric company is no respecter of lamps the same way that God is no respecter of persons (Romans 2:11 & Acts 10:34). The days He gave to Moses, He will give to you if you stay connected to the power source and walk according to the Spirit.