There are three main maneuvers to escape from a dilemma:
1) create a hierarchy
2) create a distinction
3) change a definition or definitions.
When using maneuver #3, formulate three steps:
define the single word creation as an object consisting of all of the heavens and earth or all of this world reality, and not as the creation of humanity.
define the phrases beginning of creation, beginning of the creation, beginning of the world, creation of the world, from the beginning, and in the beginning as the whole disputed length of time from the start of the act of let there be light to the instant where God made Adam and Eve in his image.
Let the phrases from the foundation of the world and since the foundation of the world refer to the period of time after the formation of man.
Mark 10:6 from the beginning of creation, God made them male and female.
Mark 13:19 from the beginning of creation
Mathew 19:4 from the beginning
Mathew 19:8 from the beginning
Genesis 1:1 In the beginning
Romans 1:20 since the creation of the world
all refer to the time in step two.And
Luke 11:5051 Prophets blood was shed from the foundation of the world
Hebrews 9:2526 People have been sinning and in need of atonement since the foundation of the world
refers to the time in step 3.
When this is done one can accept the preponderance of the evidence in favor of an old creation and still believe the words of Jesus.