Faith comes as the Word is received(Rom. 10:17). It is a gift(Eph. 2:8,9; 1 Cor. 12_9). Though small , as the tiniest of seeds, it can move mountains if exercised. Essentially, to have is to believe on a truth and then to act upon it-belief and action equals faith.
Please Read these Scriptures and Meditate on what God is saying to you.