The Holy Quran states that those who have taqwa are the most worthy ones.
Surely, the noblest of you in the sight of God is the most pious of you... (Hujurat 49/13)
…God loves those who have taqwa.. (Ali Imran 3/76)
Verily, God is with those who have taqwa and those who are well-doers. (Nahl 16/128)
For the Pilgrimage, the months are well known... Take necessary provisions with you for the journey, and piety is the best provision of all. (Baqarah 2/197)
O children of Adam! Surely, We have bestowed upon you clothing to conceal your private parts and as adornment, but the clothing of piety that is best...(Araf 7/26
Behold! The friends of God will certainly have nothing to fear, nor will they be grieved. Those whose hearts have been touched with the divine hand who have faith and chose to practice piety. For them are glad tidings, in the worldly life and in the Hereafter. The Word of God shall never change. That is the supreme triumph. (Yunus 10/62-64)
And hasten towards forgiveness from your Lord and a garden as wide as the heavens and the earth, prepared for the righteous. (Ali Imran 3/133)

Taqwa is an Islamic term meaning protection, forbearance, and fear. Taqwa requires a high state of intention and effort by which His servants take responsibility for protecting themselves from all kind of sins. It is total obedience to the Creator. In order to gain the love and approval of God one must follow his orders strictly and reject the things that God forbids. So the faithful servant becomes conscious of being created and develops feelings of thankfulness and gratitude toward His creator.

Taqwa is the spirit and the essence of devotion. One who follows the Prophet as a guide performs flawlessly in faith and in actions. Those who make such an effort reach maturity thus saving themselves from the dark side of their character.