Jesus said, "The thief comes only to steal and kill and destroy. I came that they may have life and have it abundantly" (John 10:10). In this context, Jesus is the Good Shepherd who lays down His life for the sheep (John 10:11); Satan is the theiving wolf and "they" are Christ's "sheep". They are the ones He encourages with the assurance: "My sheep hear My voice...I know them...they follow Me...I give them eternal life...they will never perish...no one will snatch them out of My hand" (John 10:27-28). Abundance is what He gives and they get.
It's a gift of grace, this life, from God. He is the giver of every good and perfect gift. He gives in abundance. So we have, in abundance. All of grace. All to the praise of Christ's glory.