Why do people equate God's giving men the opportunity to walk away with weakness on God's part? God does not lock us into a bird cage like captured canaries. He desire more than just a bunch of canaries flitting around in Heaven. He desires to have faithful ones who have chosen to abide in the vine. The Word is very clear on this.
Because God said he who began a good work will complete it
because God said we have been given the spirit as a seal
because God said he will never leave nor forsake us,
because god said if one of his sheep leaves he will leave the whole flock to go find that lost sheep, and the sheep hears his voice and returns,
because God said he will chasten those who are his,
because God said he has perfected forever those who are being sanctified
because god said whoever believes in him will not be put to shame
because God said whoever eats the bread from heaven will never hunger, will never die, will live forever has eternal life and his assurance he will raise them on the last day,
because God said we have been given every spiritual blessing in Christ the moment we hear the word of truth the gospel of our salvation, and entrusted our eternity to him
because God said whoever walked away in unbelief is an antichrist, and never was part of the church, if they were, they never would have left
i can go on and on and on,
if one can leave and surrender salvation and end up in hell after being born again, adopted and given the spirit, then all the things I just mentioned are lies, and God failed,