They went out from us, but they were not of us; for if they had been of us, they would no doubt have continued with us: but they went out, that they might be made manifest that they were not all of us. 1 John 2:19
Those who are with you aren’t necessarily for you.
And those who are for you aren’t necessarily with you.
This isn’t bad or good, it just is.
And it’s a good reminder to hold onto the One who has sworn to never leave you nor forsake you.
Don’t worry about those who leave…because you are connected to God who always remains.