Remember:
• Jesus assures us & future generations that the Truth is preserved and safeguarded in His Church because of :
§
§  1) the love the Father (1Timothy 4:2;John 316),
§   2) presence of the Son (Matthew 28:20), and
§  3) the guidance of the Holy Spirit
§(John 15:26, 16:12f)
God is the Source of all Truth
“He is the Rock, His work is perfect; for all His ways are justice, a God of truth and without injustice; righteous and upright is He.” Deuteronomy  32:4
“Into Your hand I commit my spirit; You have redeemed me, O LORD God of truth.” Psalm 31:5
“For the LORD is good; His mercy is everlasting, and His truth endures to all generations.” Psalm 100:5
“The truth of the LORD endures forever.” Psalm 117:2
See also Hebrews 1:1ff.