Taqwa is the best investment a believer can make for himself & for his children after him. It is the best provision a Muslim can carry if he wants to reach Allah's Pleasure. Quran calls towards this:
And make provisions for yourselves, for the best provision is Taqwa. So fear Me O people of understanding! '
My dear brother in Islam, Taqwa is an abundant treasure, a precious trait, an honourable substance, a great success and it assembles the best of both worlds.
'Allah is the friend of those who have Taqwa.' and: 'Allah loves those who have Taqwa' are more than adequate to show this reality. So those who have taqwa are the friends of Allah.