This Psalm is a prophetic wedding song for the mystic nuptials of Christ and the Church:  Jesus is Bridegroom, the bride is the Church and the soul.

The royal bridegroom

Eructávit cor meum verbum bonum: * dico ego ópera mea Regi.
2  Lingua mea cálamus scribæ: * velóciter scribéntis.

His spirit and courage

3  Speciósus forma præ fíliis hóminum, diffúsa est grátia in lábiis tuis: * proptérea benedíxit te Deus in ætérnum.
4  Accíngere gládio tuo super femur tuum, * potentíssime.
5  Spécie tua et pulchritúdine tua: * inténde, próspere procéde, et regna.
6  Propter veritátem, et mansuetúdinem, et justítiam: * et dedúcet te mirabíliter déxtera tua.
7  Sagíttæ tuæ acútæ, pópuli sub te cadent: * in corde inimicórum Regis.

3  Thou art fairer than the children of men, full of grace are thy lips, * therefore hath God hath blessed thee for ever.
4  Gird thee with thy sword upon thy thigh, * O thou Most Mighty.
5  In thy comeliness, yea in thy beauty : * go forth, ride prosperously, and reign.
6  Because of truth, of meekness, and righteousness; * and thy right hand shall wondrously lead thee.
7  Thy arrows are very sharp, and the people shall be subdued unto thee; *  even in the hearts of the King's enemies.

His justice

8  Sedes tua, Deus, in sæculum sæculi: * virga directiónis virga regni tui.
9  Dilexísti justítiam, et odísti iniquitátem: * proptérea unxit te, Deus, Deus tuus, óleo lætítiæ præ consórtibus tuis.

8  Thy seat, O God, endureth for ever; * the sceptre of thy kingdom is a right sceptre.
9  Thou hast loved righteousness, and hated iniquity; * wherefore God, even thy God, hath anointed thee with the oil of gladness above thy fellows.

His royal splendour

10  Myrrha, et gutta, et cásia a vestiméntis tuis, a dómibus ebúrneis: * ex quibus delectavérunt te fíliæ regum in honóre tuo.
11  Astitit regína a dextris tuis in vestítu deauráto: * circúmdata varietáte.

10  All thy garments smell of myrrh, aloes, and cassia, out of the ivory palaces, * whereby the daughters of kings have made thee glad in thy glory.
11  Upon thy right hand did stand the queen in a vesture of gold, * wrought about with divers colours.

The royal bride:  her nuptials

12  Audi, fília, et vide, et inclína aurem tuam: * et oblivíscere pópulum tuum, et domum patris tui.
13  Et concupíscet Rex decórem tuum: * quóniam ipse est Dóminus Deus tuus, et adorábunt eum.
14  Et fíliæ Tyri in munéribus * vultum tuum deprecabúntur: omnes dívites plebis.

12  Hearken, O daughter, consider, and incline thine ear; * forget also thine own people, and thy father's house.
13  So shall the King have pleasure in thy beauty; * for he is the Lord thy God, and they shall worship him.
14  And the daughters of Tyre shall be there with a gift; * yea, all the rich among the people shall entreat thy countenance.

Her beauty

15  Omnis glória ejus fíliæ Regis ab intus, * in fímbriis áureis circumamícta varietátibus.
16  Adducéntur Regi vírgines post eam: * próximæ ejus afferéntur tibi.
17  Afferéntur in lætítia et exsultatióne: * adducéntur in templum Regis.

15  The King's daughter is all glorious within; * in wrought gold clothed round about with divers colours.
16  Virgins shall be brought after her unto the King : * her neighbours shall be brought unto thee.
17  With joy and gladness shall they be brought, * they shall be brought into the King's temple.

Their offspring

18  Pro pátribus tuis nati sunt tibi fílii: * constítues eos príncipes super omnem terram.
19  Mémores erunt nóminis tui: * in omni generatióne et generatiónem.
20  Proptérea pópuli confitebúntur tibi in ætérnum: * et in sæculum sæculi.

18  Instead of thy fathers, thou shalt have children, * whom thou shalt make princes over all the earth..
19  They shall remember thy Name * throughout all generations.
20  Therefore shall the people give thanks unto thee for ever, * yea, and for ever, and world without end.