Today, the Gospel considers the theology of Christian vocation: «The Lord called those he wanted to be with him and send them to be apostles» (cf. Mk 3:13-14). First, He calls them: For he chose us in him before the creation of the world to be holy (cf. Eph 1:4). God loves us, shaping us in Christ, encouraging us to develop the characteristics necessary for us to become his children. These qualities are best understood when we consider them from a vocational perspective; vocation is the “role” in life that God's plan of redemption has allotted us so that we can fulfill our part in his work of redemption. Only by discovering your God-given vocation —the true reasons for your life— and by fulfilling it on his terms, will you come to know yourself as God knows you.
And what does God require of those He calls? He asks us to live close to him as we serve him, and in return, He promises to stay close to us. Yet, God speaks to each one of us individually and specifically. «One day perhaps an ordinary Christian, just like you, opened your eyes to horizons both deep and new, yet as old as the Gospel. He suggested to you the prospect of following Christ earnestly, seriously, of becoming an apostle of apostles. Perhaps you lost your balance then and didn't recover it. Your complacency wasn't quite replaced by true peace until you freely said “yes” to God, because you wanted to, which is the most supernatural of reasons. And in its wake came a strong, constant joy, which disappears only when you abandon him» (Saint Josemaria Escrivá de Balaguer).
It is a blessing, but it is a blessing that can only be fully realized when we become holy through our willingness to serve, through prayer, and through the blessed sacraments. «All faithful Christians, of any kind and condition, are called to the plenitude of Christian life and to the perfection of charity; a sanctity that, also in our earthly society, contributes to humanize our way of life» (Vatican Council II).
This is how we learn of our apostolic mission of taking Christ to others. First, having him ourselves so that we can share him. Today, and every day, we must meditate upon the true nature of our call to vocation, answering his call with an increased love, born of our increased understanding of what He calls us to do and to be.