Contradiction with John 8:35
This verse states that the son abides in the house forever, suggesting permanence in a position, which contradicts Galatians 4:1 where the heir's condition of being like a servant is temporary until a certain time.
John 8:35: And the servant abideth not in the house for ever: [but] the Son abideth ever.
Contradiction with Romans 8:17
This verse indicates that we are joint-heirs with Christ and thus already have a shared inheritance, contrasting with Galatians 4:1 where the heir is treated no differently than a servant.
Romans 8:17: And if children, then heirs; heirs of God, and joint-heirs with Christ; if so be that we suffer with [him], that we may be also glorified together.
Contradiction with Hebrews 1:2
This verse says God has appointed the Son as heir of all things, signifying an immediate and complete inheritance, which contrasts with Galatians 4:1 where the heir is under guardians until the appointed time.
Hebrews 1:2: Hath in these last days spoken unto us by [his] Son, whom he hath appointed heir of all things, by whom also he made the worlds;
Contradiction with 1 John 3:2
This verse states that we are now children of God, implying a current status of privilege, as opposed to Galatians 4:1 which suggests a state of immaturity akin to servitude.
1 John 3:2: Beloved, now are we the sons of God, and it doth not yet appear what we shall be: but we know that, when he shall appear, we shall be like him; for we shall see him as he is.
Contradiction with Matthew 25:34
This verse portrays an immediate inheritance for the blessed, in contrast to Galatians 4:1 where the heir is under a temporary restriction similar to that of a servant.
Matthew 25:34: Then shall the King say unto them on his right hand, Come, ye blessed of my Father, inherit the kingdom prepared for you from the foundation of the world: