WOW! That's a tough choice, but given the circumstances you've been in, I'd go with what my head said instead of my heart. I imagine your present job is exciting because it's growing, but what does that do for your financial and emotional security? Sounds like you have a little bit of time to think about it; do so. Tell us what your thinking process is in the next few days, ok?
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Psalm 119:105 Thy word is a lamp unto my feet, and a light unto my path.